Historical Document · 1957
An Aberdeen Proving Ground test report (declassified) on SALVO-programme materiel, including duplex and triplex rounds fired from modified M1 rifles and flechette loads from a shotgun. Held with the Hyper-Burst Mechanisms dive's SALVO sources; not cited in its volumes.
UNCLASSIFIED AD NUMBER AD155261 CLASSIFICATION CHANGES TO: FROM: UNCLASSIFIED CONFIDENTIAL LIMITATION CHANGES TO: Approved for public release; distribution is unlimited. Document partially illegible. FROM: Distribution authorized to U.S. Gov't. agencies and their contractors; Administrative/Operational Use; SEP 1957. Other requests shall be referred to Department of the Army, Aberdeen Proving Ground, MD. Document partially illegible. AUTHORITY USAMC ltr 24 Apr 1973 ; USAMC ltr 24 Apr 1973 THIS PAGE IS UNCLASSIFIED UNCLASSIFIED AD Reproduced Inf. ike ARMED SERVICES TECHNICAL INFORMATION AGENCY ARLINGTON HALL STATIONARLINGTON 12, VIRGINIA ^•'"•^j* W3 DOUNGRADED AT 3 YEAR INTERVALS: DECLASSIFIED AFTER 12 YE/uR3 DOD DIR 5200.10 - UNCLASSIFIED m. i^ flrmed Services Technical Information Agency ARLINGTON HALL STATION ARLINGTON 12 VIRGINIA ; MICRO-CARD CONTROL ONLY DOR4 OTICE: WHEN GOVERNMENT OH OTHER DRAWINGS, SPECIFICATIONS OR OTHER DATA ARPI/SED FOR ANY PURPOSE OTHER THAN IN CONNECTION WITH A DEnNTTELY RELATED GOVERNMENT PROCUREMENT OPERATION. THE U. S. GOVERNMENT THEJ :VY INCURS NO RESPONSIBILITY, NOR ANY OBLIGATION WHATSOEVER; AND THE FAC. THAT THL GOVERNMENT MAY HAVE FORMULATED, FURNISHED, OR IN ANY WAY SUPPLIED THE SAID PiA WINGS, SPECIFICATIONS, OR OTHER DATA IS NOT TO BE REGARDED BY IMPLICATION OH OTHERWBE AS IN ANY MANNER LICENSING THE HOLDER OH ANY OTHER PERSON OR CORPORATION, OR CONVEYING ANY RIGHTS OR PERMISSION TO MANUFACTURE. USE OR SELL ANY PATENTED INVENTION THAT MAY IN ANY WAY BE RELATED THERETO. Aberdeen Proving Ground MARYLAND A TEST OF SALVO RIFIE MATERIAL (U THIS DOCUMENT CONSISTS 0 F . . . / £ " . & \ COPY .^...COPIES, (D. A. PROJECT NO. 504-05-022) Dr* 'ELOPMENT AND PROOF SERVICES 40 -ch TSl-£ u Report OCO Project Ho. Re^rading data cannot be predetergjl^jd^.^ ,.ovii<< Ä\ 1 This docum««: Is the property of the United Stfttes Government. It is furnished for the duration of the contract and shall ba returned when no longer required, or upon recall hv ASTIA to the following address: Armed Services Technical Information Agency, Arlington Hail Station, Arlington U, Slf gffila: ij NOTICE: THIS DOCUMENT CONTAINS INFORMATION AFFECTINO THE NATIONAL DEFENSE OF THE UNITED STATES WITHIN THE MEANING OF THE ESPIONAGE LAWS, TITLE IS, U.S.C., SECTIONS 793 and 794. THE TRANSMISSION OR THE REVELATION OF ITS CONTENTS IN ANY MANNER TO AN UNAUTHORIZED PERSON IS PROHIBITED BY *-— BEST AVAiLA mo THE EAMING id 794. IN BYLAW. .. —- ■ - COPY CONnMNTUU. DBVKLOÄBrr AW» «wer 3WVXCS3 ABSRDLl» FSOVTKO GROUKO MARTLAJIP WTSSITT; ORpm (Ou-Mn) COT 3333 A T«ü,etypc L.^Mtoore/np S«ptMb*r 1957 «gr or SALVO aqui HAamiAL |oj paorrrra HKPC«T cat QRHUKCT OORFS PBOJBCT M. rai^ MOES CT BäaT: 2? AHtXL - 9 —WWW 19S7 ABE1BACT OBJICTIVI Pwr salvo •xMpous, t«R munde of ■—111 ..tloii, ami «a «ddlUoiva collbw .££ bullet war« aubJ*ft*J to on» or «or« of tin fdlotilflS testa} aceureoy, VBiocHj, pmauro, rvterdatloa Ir ttw Ui >r vMt, tl»»-of ■ flight, uA pMt#tntioa In tb« HL «tocl h*-V«t ud in i-lach atMl plat*. Bin«« ti* pu-pome of this taat MM to provld* teta for uae la the afciAjr of a broad Wlvo prograa wbloh locluAea bot' itlcal aa vail as tactanlonl ooosidaraticma, no eooolusloas ax* aada. ^^fe*«»*,™ VMMWSBfli -------------- DB8CBIPTI0« OF tuaniXL - XTfJXA CT 3BST suauitr > - ossravATims - - RectMoifnmo» coscursicnf: - APPB.TO1X A: DDHCTTVl TBZrfPK AIPBIBn Br FOTCTrCIt «EPOBTB :\ppmaax c-, TEST MXA UMMM D: PBCHOORAPSS DiaraiBOTMii - - - - - 3 --. i _-- 7 '«w»IB^3?lafe*,*««^ I. HTflCDUCTlOH Sevaral Itemm of rille «BterlaL have been developed &6 a means for iaprov^og the efTectlTMOess of grouod troops m coBibat< B&ch of tbese iteve produce«« « nunber of projectiles with one wovatmat of the trigger It J.B desired CO deteralne the velocity, accuracy and penetration characteristics of this ■atcrtal. ii. MBcniPTioii eg1 mraniAL A. Carblnes, Caliber .22, M2 seHal ouMbers 71^9237 and 71^061 vere use< in ttna test. 'RUs veayon 1« a caliber .30, H2, oarblne Bodlfled to use Cartridge, Ball, Caliber 22, Carbine . The original barrel has been replaced with oae to uae the caliber 22 round and the »wazice has been itered. Also, a nuxzle brake of a special design has been installed. B. Carbine, Caliber 70, H2 serial auvber 7lO'+206 was used as a control 1» the beach rest and AUt««atic accuracy tests. C. Rifles, Caliber .22, 'A8 serial muriMrs 1606 and 1909 were used la this test nils weapon is a caliber .30, "AS rifle ■odlfled to use CurLridgo, Ball, Caliber .22 (unofficially called Tk&] with 68-grain bullet The original barrel baa been replaced and the BBgazine has been altered to use the caliber .22 roundD. Rifle, Caliber .30, iM serial nunber k0&5 ves used as a control in the benehraet and au tos» tic accuracy tests. 7. 'Phf shotgun used in bL the flecfaette aaa^nltlon was a Code A, 12-gs«e with a 36-inch ■odlfled barrel. The barrel Mas reinforced by the addition of four V-ahaped sections of l/l6-inch material 0. nie following test weapons Mre mploy*d: 3. Riflh, D.S., »903, aerial «über 1521616 with s caliber .30 accuracy test barrel assMbled. WS^™ ^ortHDENTJAi. , N70. S9rlal TfjMbvr 3673Ji4 wlU. a caliber .25 Lest i M70, S«rlai NUMb«r JÖ4Ö2? vlth a callbtx 22 telt 7. Hin«, U.S., »ayuj, HvUl HtaSMr 15151*2 wim . oallber .30 accuracy teat barrel »••oÄlud. S. Ite following barrel« were «aployed With unlveraeJ. receiver»; 1. Barrel, preaaure, caliber .22t esrbtm;. 2. Barrel, preaeure, caliber . jP, ouBb'jr 3830. X. Cartridge, Ball, Caliber .22, carbine ueea a braaa case, ball propaUant, nsd a lead-core Jacketed bullet. The average weight of five rouuda selected at rand« WRS 132 grain«, the average bullet weight wa» Jil.l grains, the avnrage weight of the prlaed caae ma 75.0 grslca, and the average weight of tlie propellaot wa» 16,2 grain«. J. Cartridge, Ball, Caliber .22 (uuofflolaUy Identified &■ T'.H) uaea » brae« caae, btiU propeLLaiit, and a lead-core jacketed bullet. Tbe average weight of five round« selected at janden «as 267 grains, ttu average bullet weight Mss 66.2 grain«, the average weight of the prlned case was tfcJi grains, and the average weight of the prop&llant Mas Uh-2 grains. K: cartridge. Ball, Caliber .30, Duplax .^e« a brass case alaUar tn the standard caliber .50 except thai, the hrek 1^9 oaen lesgthenad 0.*; i.,ch (ovarall length of the case Is 2.9k Inches) All propellant is used with tw-- lead-core Jacketed bullets. Ibe average weight of fivr rounds selected at raadh« «as U5 grain«, the average weight of uhe front bullet was 95.5 grain«. She avenge weight or the rear bullrr was 95-6 grain«, the average weight of the propellant was 4^.8 gr&ln?, and the arerage weight of the prised ease was 20^.5 grains, übe beep of the rear bullet Is at an ansie of four degrees with the noraiil to the axis- Hie base of both bullets Is concave. Ute point of the rear bujJit extends wLthin the base of the front bullet when asseabled in the case, flie following lafonsatlon is printed on each 20-round cartridge box. Cartridge, Ball, Ckl..30 Duplax (Contralled Dispersion; Loading Date - Mtjr 1956 Contrast to. nA-19-O$9-507-0RD-237* Manufacturer: Code DL. Cartridge, Ball, Caliber .30, Triplaoc uses ccMpooent« alnllar to those 1.1 the Duplex round except for the projectiles. Three lead core Jacketed bullets are use-l. flhe average weight of five rounds selected at randosi MS 434 grain«, the average weigbt of the front bullet was 39.5 grains, the average eei^ht of the center bullet was 5S.5 grains, CONMDENTrAL i'- M Uie roar bullet uns 5^-7 grains, the average >«igtit 1 waa 52.4 grslii», and the avurni« weight Cf tho primed "Hofl. "Hie base of Bach bulltt Is concavs. The point of btaiot« extends within the base of the forward bullet i the case. The roHowinB InforBfttion Xa printed on tj-Iögo box; Cartridge. Bali. CM. .30 Trlpdex U'ng Heck Case NU iy56 OHD <i3ai %■ Cartridge, Ball, Carbine, Caliber .jO, KL, Lot LC SL376y w&s fired in tie e&rfclne, oaliber .$0, M2, which waa used as a uoatrol . 0. Ill« following caliber .30 rofereiice round was fired In the barrel, pressure, caliber .30, Kiuabet 3830? Oae: CBllber .30, Lot FA* 30-375 with Code F »o. I| primer Bullet; AP, H2, Lot FAT 30-37^ ProptlUmt; Bffl 4S95, Lot 2057, ^-5 graieis. Assessed vn-luea; Velocity 2716 fps Pressure ,»5,^i00 psi P. The flecbette aanunitloa used in the 12 gage shotgun WBB asseabled by Code B. tt MB identified by the Thiladeiphla Oi-dn&oce District as .uivt^iui Rounds, Type ;,-IJ., in accoidancc with AA Inc Drawing Ho. 1150O^UOOi. Ten rounds w*re delivered 00 It June I'l^T for the directed test. At a later d«W flftj- round« «re delivered as instructed by Mr. ctmrles Dloltey, PiMan Dunn Laboratory, Fraokford Arsenal, for use in testing special target Material by representatives of the Code C. Seven rounds of the 50 delivered for use In targe* testing were not used In that uctivity and they were oade available for the directed test. The ten rounds provided for this test were fired In the veloi'.ty rattern and penetration test. One of the rounds fro» the latter delivery «as broken down and the components inspected and weighed. The ronalnlng rounds were fired to test Instruaentatlon and ID a penetration test at 200 yards. i3tere was a sligt'.t difference in the B^aioltlon in the two shiivsnts. The rounds In the latter shi)nwot had no vad over the front of the projectiles. The weight of the ccaplete round was 717 grains Ae weight of the eoHponent« were as follow*: oatpoKOT Flechettes (32 in JiMfcer) Plastic sabots (4) Alumlnua plug First Wad Secor^ Wad Propellant (flake type) PrlBsfi case CONFIDEHTIAL waicarr (gmins) 390.5 96.5 V0.5 12.7 9.9 30.2 176.3 CVKFIOiNTIAL ft« dlBMtar erf tbe body of ttim riecht tie UM O.OÖJ incb. At a BttU l«t«r tet* 105 round» wer« amis »vallable for haljiMt pAnetnttlan Msta at 300, 400 «ad SCO )«rd«. Q- Ihc foLlowl^ «ddltlooaJ rounds a«*« duotad vith the araor mat. The round* ' ■fenipw. 1. Okrtrld««, »all, Calf-ar .22, with ÜO-Oralr JuUat, Lot 10LKU ua«a a brast oaaa, ball ^cropallaiit, acd a l«ad-eora Jacketad bullet. Tha avaraga waljht of flva rouada aalaetad at made« wa 271 jralan, thi amnca bullat *aljht uaa 50.3 gralaa, the avara^a val^it of the prJaad c»a« Haa 173■? »ralaa, and tha »varaca waiftit of t>;c propellaat ua« if.7 2. Oartrldg«, Ball, Oallbar .25, with ?5-0raln Bullet, Lot 7WC3I uaaa a braaa caie, ball pr .pliant, and a load-core Jncfcatad lH<ll«t> Ri« av^rafla «alsbt of five rounda aalactad at r&ndoa vaa 2^ gt^lna, ttoe arara^a bullat waigbt «a« 7k.^ grain«, tba «Torage vaictit of tha priaMd caae ua* 17^-3 »ralaa, and tÄa a'vantge veig^.t of tha propaUaot wau 46.It «niu. 3. Ou-tridg«, Ball, Callbar .27, with ?5--0nln Bullat, Lat 66IMS2 uaaa a braaa caae, ball propallant, and a laad-core Jacketed bullat. The a*ara«e waight of fire rounda ael*et«d at raadca •ma 31% grün», the a^arage bullet kreight ma 95.2 graioa, the anraa« might of the priuad caae HBI 174.0 graiaa, and the «varage weicht of tba propellant wa» 44.7 grain». 4. Cartridge, B«U, (teilbar .30, HZ, Lot FA 4310 uaaa a braaa case, tubular propellant nod a l**A-cc-m Jaefcatad bullat. m« average weight of tha rounda aalactad at tandoai ma J99 gralna, tba araivge bullat weight «Ma 150.1 grains, tba aTarage weight of tba priaad o*Be wa« 199.0 gralna, and the avaraga weigtt of tba propellant ana 49-8 grainsR- A laad-cora Jacketed bullet identified aa a 50-amo Full Pitch front Bullat for Caliber .22-06 Oaplax Oartridga was loaded In the 1*3 case using tba required cbnrga of IM Ho. 4395 propellent to give tha dealrad veloeittes. Areor Vest Qreredgad *fi.-i Over ,4lt. Gnta 6 Oct. 1953 Phil*. Q,M. Depot COHHCKNTIAL in. A- DCTAna oy TEST pWOCKDUfo, 1. Tb* various rounds ware jubjected to wloclty ^.ud presaure teste -■aere apprcprtats t^st ^aapuna were aroilable. Twwuty rounds were fir-d in t;i.,.-ii tent- Hie velocity was recorded at Jfi 'eet froa> the mzzle by raeaoa of phc.oeipctr'c »creens and a counter chronograpb■ 'nie pressure was 'etendned by leaus of copper pressure cylloders (%-ftvlag HusdMr ^-39^3^) und obturntlns cups (Draulog !tLUBt>er A-39*135) wltfa the appropriate tarage table y. Slmultaneoue tl»e-t.f-fllght and remaining-velocity t*st« were conducteda. For ths single-projectile ttassinltlon, data were taken over ranges of 30ü, hoo and 60O yards with counter chronographs Ccd^bar .30, Ball H2, (C6 * .227, 6C0-yard data) waa used as cootrcC b- ?or the duplex and triplex anunltloa, data were taken over rangee of 10Ü, 300 sad 500 yards with the canera Chronograph. Irälvldual ■■•jiu-poiient velacitles were recorded, uslos the SSBR type of InsUusentAtlon as was used In obtaining velocities for Multiple "darts", fired front shotgun shell», ai described la the j6th Report on Projvct So TS1-2. la the "Duplox" llriag oa 22 and 2i Msy, the instrumental velocities at 25 ft. «KM not distinguished for the tvo coBpoa^nta "Äereafter, they were dlstlngulsbad. la the "Triplex" firing tba lastru»aatal velocities at 25 ft for the 2nd nod 3rd caa«>CD«nt were act distinguished la any of th« firlnfe ■ In the 500-yard Triplex firing on 1? JUnt a third luHilloe screen vas used at 60 ft., obtainlog a secood i.-«truiieaMü. velocity at 35 ft, OoBVOMnta Ko. 2 and Do. 3 s'.lll gave the sase velocity (i.e. the velocity of eft^onent Ho. 3 «as not detected). Thi» was the last flrlneIt appeared Uurt unless the velocity differences were on the order of 200 fpC-, the luadllne screens did not "load up" rapidly eoougb to record the velocity of a succeeding ccerpouent. The tlaes-of-flight and resialning velocities of the "Triplex" were so nearly ttu same (and over-Lapped for so»* rounds) for the Smd and 3rd caeooaeate, that unless data for both edeqKmeate were obtained. It was not known Alch o^onant was being measuredDLfferenees in tUMS-of-flight, and sinUarity of Ixalllatic coefficient, as Indicated by shape and weight of the aovooents, were taken as svldenee that the velocity at 25 ft for the third co^onent of the "Triplex" was not belns detected. An approKlaat« correction factor, to obtain the velocity of the 3rd ecaqwnent froa that of the second was obtained as followa: Based oa the 100-yard data, Cj_ for the IsL eoapooeat was .100 and for the 2ad, .096, Tlaei wer« recorded by the eaaer» chronograph, between 10 ft and kO ft aid better, ko ft and 290 ft of T«ag«. Velocities VL and V2, (26l4 aad 21>3 fpa) aorreeponding to these two tin« Intervals, were coaputed for the first eoapcntsot. V-^, over the CONRDEHTIAL CONFIDENTIAL •hört tUw lDL«tvaJ.j "».«, *M utudi, coD«td«r0d «ppllcalde to tha uld-polat of Uio rmac* intenfiU. (»t 2$ ft). Fro* th« VMICWIUM V^ and Vg and th* balllatlc cM^flciant, the correapoodlnc rance (14? ft) uai cunputsd. nil« dflteminad fciut t-oint of applicability of Y2 aa b«li*j at lii9 / 25 ft. Thl« MM uütan to c].oa«ly approKlaate tbe point of applicability of tue enrr««poudli4g Yvloclty, ^2, for Ute 3rd ecmporutat. Ualug the lat-coaqtcoant bdXllitic coefficient aa an approxiBation of that of tbe 3rd , tha valoclty at 25 ft for Uta 5rd oowytaapt (Vi ■ Z33h fpa), «•■ co^utad frcai tha Buaaurad raloclty V2 ■ 19'' fpa aiH< the rance (lUy ft aa «ppracinated abora), mtla »elocitj, ?1 t 7j3'i fpa, vu 66 fpK lower than that of the 2Dd MMpoaeat (the aaaa obcamd and velocity at 25 ft)- Tbo aean obaerred 2nd veii^city at 25 ft «as cooaecjuiaitly 'corrected" to jrd-coavonant raloclty by a reduction of 86 fpe In all data. The «leven roonda for which collate date .-ere obtained, in 26 Iky over the 100-yard ranee, were iiaed in dat«rMirUtm ttie 86 fpa correction factor. 3- Tbe fallowLag accuracy testa were coaductwd: a. Machine-reet accuracy taata war« cemducted at 100 and 300 ymrda. If-» targata ware obtained «laailtanaoualy ualcg the A target without backing ■atartal at the thorfr raoge. (1) Ptr- ten-shot targata were obtained with each of UM tvo types of caliber .22 cartrlds«« with the approprlata accuracy teat rifle «saenhled In a Reat, Raooll, Accuracy, CeaiDtr .30, Carbloa and «ountad la a rrankford Araenal — ■>■<"* rest using an appropriate "V" block. (?) Fair ten-round target« uer« obtained with each Ifeplez and IrlpX« aallber .30 round« fro» aaeh of two Ml rifle« ■odiflad to use thea« «peelal round«. UM rifle we« iMiwftled In Cradle, Qhlranal, for Rifle Accuracy rirlns and aounted in a rraafcford AraeoeJl mehlne re« t u«ing on apiiropriat« "V block. t>- aenoh-r««£ accuracy te«te were conducted at 100 and 300 yard« ueii« UM ■Ddlflad carbine and the «odlfled AÖ rifle. Ihe targete at tha two range» were obtained alMaltiuaaoualy a« In the «aehloa-reat teet- rive ten-round target« ware rirod rrcw «aeh weapwa ualng the A target (with 10iDCäi baU.'e-rye) a« an aixiog point. Oh« oaliher .30 Carbine and one cf.ll.ber .30 nd rifle were fired for control. c. An «ataaatlc accuracy teat wa« ennduotad with the caliber .22 MapoM using etaadard calibar .30 weapota a« a control, Thr«« «hooter« each fired ten three-«bot tnirat« fron each typ« w«a»on fres IK-MI the prone and •taadlng posltloas at 25 yarde. d- In tha teit deaci-lbed in paragraph 3* (2) above «one of the «hot« failed to hit a 6 x 6-foot target at 100 yard« wtMn firing the Triplex round. CONRICMTUL CONr-IDfcNTIAl ,.:,..(? at B .-tuige of 50 yards M) further «BLabllsb .stiM of U'.la rcuad Four lO-round target« wer« . lirtMB a 12 x IP-foot twgst rtth ac A target In tlo . In ««p.h round >«■ identlflf: ty applying colored .ox. The three shot k-ilea fc- each, round -»«ere rdio f. Adai tiotttü. accuracy "LO» .a ywre roaduclod to determine the cause for 'lie-, poor accuracy obtained In firing Uie T^tö caliber .22 round Coa:■■::-.:.■. ä ■■[ kciowu ^.lallty ware ueed a* B control. i». Penatratiotv ^eot« were conducted In ata-xl halmetB at 300 and ^00 yards vi to each typ« of weapon 3. Retardsticn tests wrrs conducted on body amor with collOM' .3S, 'illber .?■), uallber .S7 and caliber JO rounds. Tts r«loelty for each ■ o-^ai «as calculated for ra-^;-* of 0, lUo, TOO »nd 500 yards- Full anc reduced charges were used -■■ cbtaln the dealrad velocity levels for penetrating the vast at a mi^« of 55 f^et. 6. ftie fleclu-tt« aanmltlon vus flrod Lc . laodl fled II ({age shotgunTan rounds ware füMM for velocity, pÄt^arn xaä oenetjatloa In Ml helaieU. The velocity Mas recorded at, ? fast free« the nuzlc of the weapon by martns of bjjsillas seraans and a counter chranograt>h - The screens vert plac** at a distance of 2 and 12 feet fro« UM wszl* of the weapon. Th« pattern was raccrded on a 6 x 6-foot Kraft paper target without bacldng aaterlalItLree r-.wa of four KL steel halaets and liner" were placed at 100 yards for observation of paaatratlon. Additional tvsta were conducted to delamlne peaetr&tlon on Ml steal nelMets at razees of 20O, 300, 1(00 sod 5Ö0 jard«. 7- A lead-ccire Jacket**! bullet Identified as a 50-Gimln Full »tch Pront Bull«t for Caliber .22-06 Duplaoc Cartridge was loaded In ttw 1*0 can« using the required charge of MR Ho. 4Ö95 propallant to give the daalrad vulocltles. Tbe round was aubjeeted to tine-^f-flight, accuracy md penatratlou tee c- . CONFIDENTIAL COHFIDlfNTIAL FuneUon repori-» «.rf ait*etiod «a Appendix B «uul test data are «ttaah*d a« A^rpvadlJC 0. 'ftcro foxlcnM a auJBHi-y of result«. fBJJQJTf TS3T Ito .dlocltjt la siT*n in f»«t par «««and at 7S f««t. Room CAUBBR .22 Tfcfl DOPIJa* 3559 21*6 330i A9I 3ZU 2393 92 98 'A.s 22.7 CALZHR .22 CtXKXE " 2K7 29^1 2e!»5 i ;.5 Avmrmtf ««iJMi tlioiau» TRIFUK* "S573 25BV 223.5 369 107.fc pjr-i,.c .i-L- is ftivwn 1 BBSS .22 AvnM* HBZlWM Klnlaw« ttctrwa TUlaUon Haan Vftri&Uao CABBDIE 36690 39500 32600 6900 Hit DUPLEK 52115 55ÖOO t^aco SÄ» )MM.' ixmsx 551^ 59000 52100 6900 1875 > Valocily racordad duri/ig preneiirs taat (aftort-pisten velocity). Valocity la for first bullet which pasaad over screen. COHFt&THTIAL COHrlD^ «TIAL , av. I-.T s •j.^'-^- ■FLIGHT /TO KSKAXNm;- viLDcm warn J^M resrs BALLISTTC C0EmcrEI(T IF,»C WHS nmcnm DA3A mi nranB ~ VSLCJCITY DATA ^^AI ■132 •I» .128 Mean: .Ij» .132 .130 .132 HMM .213 .230 .23* .226 CaJ.. .M» BB200 l/KFiyEk 600 Cal. .22, TW a» km -136 .132 .131 •as ^5 .211 .236 .23* Coo Ciil. .22-06 Dttpl«x (Freut Bullet^ Single fire) Cal. .10, All, MJ> Lot FA-Ji33ü (Cantortl) 200 06 .10a .109 .126 .119 200 400 600 8< .236 .226 .221 .226 ■229 it» ^ 6oo .U3 -aei Heaa: W 500 loo 300 •500 .224 .2^6 .226 .226 :iw -^las TBft Itk -^50 ,170 .168 If. _Zoä Cal. .30, Tripl«* .109 -ITli .IH .169 .17i .163 .169 .lau ,171 Mean: .167 £& l»t_ Pad jrd l£t Sid ^rd. Gi .100 .09k .0?6 .IOC .088 .091 .100 . .100 .o&i .»^7 .ira, .093 .087 .101 . .112 .UO .095 .10^ .093 .09.3 .-i-06 ■ he&aaca . 'Teased m ooe (l) mud only, »od excXwled m-» ■wtin. .094 .094 .091 CONnDCNTtAL IMt« for SCMidartl H*üeorol<ifl:io&l cooütion« &io Ukbu.^t«d b«lo«. Muni« Tvlocltlea ar« bssed on VMQ observed loatrHMntal veK--.'. : ff For -■■e Blogie-pro.leci.il« tjrp« «nunltloa, Ule aaas bftlilli.lc cttttliimnt obt.nla»4 Tram tat ubverväl daW, WHS ua*d for tbe £iC, too, .'Lid ■".>■-■...■[■: mag«. MM 300 »nd 500 j»rd value« war* olit*lned f» ■ inrtir lata:pca»Uoa. for tlie dupl«x EDd trlpiax MSUIUMOCI, UM UUBC ba.Uiatlc cbefTlcont «wi used far all rangM (the >Bsit of Ch« VKIO*« obtained fro« i.ivfc 100, 300 anil 50ü-yBPd observed dAt»). RANOE WMAurao HAXMM d. CW.- 300 400 500 600 300 WO 500 5-:» .131. .13* ■13» 133 ■13Z •13L .130 2!«. 2V31 1939 1505 1157 999 862 .3.3 .213 • 213 ■xa. •230 .232 •23» 331» 3030 2756 2520 2312 Cal. 300 500 600 •109 .109 .109 n? .115 .116 .118 tgut 1885 .22-06 SUEVATK» Bin .22 CwWw .1 .3 ■7 1.0 6.5 .2 1.3 2.1 2-3 5.0 9.0 14.8 23 .t 35.0 1-7 3.* 5-» 78 10-3 133 Dupl« irrm: ta»il»t) 35*3 3086 3530 2E3 1837 1»S3 1200 .0 .2 .h ■9 1.7 3.0 1-5 3-2 5^ 8.0 ll.£ 16.2 CONKDENTMl FAHGK äALLXSTIC RBWAJXOK! J&L. coEFFicmrr veuxjrt, TV HMJMJH n SSBSSSSM Cal. .30 BftU-, MT, (Lot Ho. FA 4332) Contro' 2702 2k7y 2259 2047 1*5 1655 1478 300 iioo 500 600 .6 1.2 33 11.7 15-8 20.4 1.1 2.5 4.8 8.3 3-0 7.2 13.1 21.4 32.4 46.3 1.2 «■7 5.1 8.6 8.1 14.6 23.4 35 0 49.1 3.6 7.2 12.8 16.8 30.0 47-7 70.1 Chi. 30 Duplex lat CcaQiooeot 300 toe 500 «0 .167 .167 .167 .167 .167 .167 .167 2512 2Q15 1584 l*i 10JS 925 843 Oil ■ . 30 Suplez ss 300 400 500 600 .176 .176 .17« -176 .176 .176 .101 .101 .101 2354 1904 1515 1051 2678 1867 1257 725 640 13 CONHCMNTUL CONFIDCNTIAL wwAiraB MAXIM» CCSTFICiaiT ELBVATIOH ndu (Oa. .30 Trlpltt) ::!vl Component .051 .0» .C^l ■o» .0» .09a 200 s 500 .osa 2556 1693 1U7 893 765 665 5& .1 ■5 1.8 4.5 8.| 15-2 ?•« 9.6 20.V 36-3 57-3 IP 3rd Ct^xuMnt 1 .091 .081 .0» 2S 500 600 o» .0». 091 .0» m 863 758 ■1 .6 i-8 ».j 15.■: 3-5 10-1 ft.| 17.7 53-0 6Ö.2 CONFIDENTIAL ACCURACY TESTS MACggg-MST ACCURAq BOUWB HR Evr XHD IS 1.5 h.s 1.4 6.4 1.8 6.8 4.8 13-1 4.3 19-3 Man MVD lOü-Ärd nus«ta CfcLlber .22 (Ärblne Cal-lber .22 TW 0.6 2.0 0.4 1.0 0.3 1.5 J00-»rt MfH^ i.a 6.0 Csllber .22 Caiti&c CaLllwr .82 M 1.2 3.2 1.1 M Die a «:r»i«» for riBST mm m KTO WHD 5.6 20.4 r. gl TOO in ™. ALL saoxs ES) BS MR* EVC BSD a JKML. Rifle Mo. 5973*« 1.9 1.2 1.0 Rin« »o. 59770*7 2.0 1.5 1.0 5.9 4.1 6.6 10.8 19.3 ia.6 20.8 5.3 4.0 6.2 8.4 19.2 15.0 19.7 1.9 1.0 5.6 4.05 6.4 9.6 19.25 16.8 20.25 filfl* lo. 5973*53 5.9 *.3 3.1 6.0 1-35 iB.l. 12.2 19.8 31.6 56.4 56.9 63.4 k.6 8.9 n.h 11.8 19.4 25.0 56.8 45.6 59-2 Ann«« 5.95 ».*5 3.0 1Y.S 12.0 19.6 28.3 56.6 51-35 61.3 from rn« caatcr of i ^i. i 1 of ih* first .liot in «Mb roaad. 15 CONFIDCMTIAL CONFIDENTIAL WTO HMD WP loo-Tfcjd aawKii Bin» to. 5973*53 $ Shot« KlsMd terget* 12 «hot» nLsscd target* MOM *>- 59770'»7 3 «bot» msMd tare««* 6 »bot» Hlanad turg»^ 300-Htrd Tfcryt» Wfl« lo. 5973*53 5 »bot» iaii»ed «KTK^t*1 13 «hot« Qli«ed t*r««t*H MJTl« Mo. 5977C*7 5 obota mLmemA tanfft** 6 »bot» Misuad target" • k 6 % 6-foot target IHM u«»d at 100 yai-d« > A 15 x 15-foot tArget WB ua«d at 300 yard». COHRMKTIAl. CONHDSMTrAL 3FBCIAL TEST OT OUtlgtiacai, BALL, CALTBBR .22, J»8 TO UKxamm cmsz VOR POCR ACCPRACY Awra«« meB««ro»Bnt» for Mu-shot aftcttlatt-rcst target« flrad st & rutgu of LÜ0 y»r(l*i ar« (Ivan la Inch«» . C&rtnte«, BK11> aaitMr .ZZ, tM vl'-h Uie onglml bullet rvjilacwd wttb one oT bd-cnla of UM MM dMl«D but fro« « diffcmit lot. * O.ä 0-5 0.5 2-^ 18 2.k Cartria«», aOl, Caliber .22, budlOMM with bullet, mnorad fror. 'I%S round, 42 fvaln« 4350 propallmat, «ad HCC-9 prlMr. 4 l.l 0.8 0.6 3.0 2.9 3.7 Cartrldfi-», B»ll. Caliber .22, haodltaded with • 6Ö-tff»in bullat, 42 gwlna 4350 propalluit, and WOC-9 prlMr. 2 0.5 0.4 0.2 1.4 1.1 1.7 CKrtrlds*, Ball, Ohl!b«r .22, iumdltÄdert with propalUnt rtmond ttxm the T48 round, V9C-9 prl«er, «nd « 63-gnü.n bullet. 2 1.0 0.6 0.8 2.3 a.8 3-2 gar or y-gua wu. PAfcg WBXXT FOB cALiagi .22-06 wartp cjunEiaa Aim 37-Q cstAnis or pa 4895 FitofaLLABT Awimii« mtmaanmtat» tor four ton-tbot aaebdnB reat group« ftrad «t a raos« of 100 yard« mrn givvxi In loctw». _» o.e WTO 0.6 MB 0.6 BTD 2.1 CONnOBMTUL EP 21 M 3.4 CONFIKNTMS. JMMflj n» Kranke«« for flv* tea-shot t*rsBt« fro« ««ob Mat wsepon. i given in iucba« MTi) MB IVD lÜO-^M Taim«t« OarblM So. 71^9237 C«llb«r .22 cirbiB« Wo. 7195081 Awrvg« 1.3 0.9 1.5 X.k 1.0 0.95 1.0 0.9 b.l 3.3 1-7 0.9 6.2 2.5 1.6 1.6 6.b 7.2 ».35 »•9 3-25 b.6 3-1 15.7 U.05 3.2 1.8 Gallbar .30 Csrblo« 10. 710*206 Callbor .22 AÖ We- 1616 callbar .22 7*8 mo. 1909 ATarb«C«lib«r .30 TU K. to* Owbla« le. 7149837 Callbar ,28 Cbrbla« Ko. 7195061 Avaras« teilbar .22 KM lo. 1616 Oallbar .22 l-bö He 1909 *.2 3-6 6 6 7-7 Ib.b 10. b5 16.3 15-05 3-« 21.b U.b5 b.65 5-9 2.9 21.b 13-3 ».9 k.S 18.6 19-9 ib.o 9.M lb.2 9-5 tt.T 3165 *3.9 31-9 83.* CONnMNTML 56.1 39-7 CONIIPSNTIAL Bjaca-RIST ACCtmACT TB3T OF BtlPLEC ROüaD Taa average« for four tm-rmind target« fired at a range of 50 yard« re «iven la laches. rptar SHOTS — .1 .Myg 6.8 Mt 3-5 jgg 37-2 EHD 17-6 ALL SICE GS .:3.6 MR* 7-6 KYD W.6 EHD 26.3 E3 43-8 Froai the center of lapact of th« first shot ID each round. AtnOMATIC ACCTHiACi Hie rncAu dlatence of the two autcvutically-fired «hot« In each threa-rouzid burat frsw th^ center oC In^nct of ehe first shots Is given la Inches. Each figure la an average for ten three-round burst« fired by each of three shoo tens at 25 j&rds. WEAPQti POSITIOW Caliber .30 CKrbloe oaikar .22 Carfttne Caliber -30 1*6 Oaliber .22 Ttö 19 COMFIDSNTUU. CONFIDENTIAL HBEfflATIOW* MMBBR OF H*lj«wt, Saldier, St*?!, Ml vltb Ueer C*llb«r .SZ C&rbins 300 5 too ^ CkUbn- .2S T<»6 900 5 aaiber .30 Ougtlu 300 9 kOO 5 100 7 200 9 600 3 Caliber .30 Tripl« Oallber .22-06 Jtu9i.nL (front bullet) «Dafinitlon« for »arlous type« -' pmetreUon« are gi»on in the penetration test data included in Appendix C. All bullsts «KV« nari-...- ■ . parfaratlau 1B ace «14« ■'.' bml■et aad ilnw. All bullvts failed to p«ne~ tT*t« naljnet. AU bullet« gave eca«aete perftnMtlcm la tutu «idee if iMlaet and liaer. Two first bullete «bl^b hit hmlamt. gave eia^J.eto pertaz*.tlona in cna aide "f heliaet and buth »IdM Of lUMT. Ihre« Moaond ballets ablob h-'.t heljKt failed to penrtmte. Of four firat bolleta \nicri hit Leitet, oca gave a COKpleta parf oration in one aide of bolMt aad liner, aad ;/■■,■■;■ fa-Uad to poMtrat*. Oam aaaood bullet wblcta bit baljtet flfcve a ccn^tlete panetratJLco !■ ouc aid* of btOr^i and UUar. Of alx »eocnd or third bullets wttLuh hit hftlaet, fiv« 8»ve oonplete parfotratlane f.c both «idea of bolnet and lloer aad CD« 0»va a ocatpleta par fütmtlctj in one aide of iial»f and both aldaa of llnar. Cu« first bullet wbloh ctmoK taAmet gave a complete perfnra';1.:« In both aides oT hein^t aal Two first ballet« and three a^ond or third taullsta uhlnh hit helnst failed to pet.«t.r«tr' Of fin bullet« shith hit kaHnet, four failed to peutrat« and on« gave a ecnplete perforation in ooa side of tb« helsc«t and liner. CONRDENTIAL COHHOENTIAL xü'ioaz RAMGL (yd*) FAm mi-fi Plat*, Steel, aawigwiwcnti«, l/^-iarh äaibet- .22 'Jarblne LOO ^ All bulleU failed to penetrate. Caliber .y) lluplax 100 9 All bullets failed to pweti-ateGaliber .30 T.^lplMt 100 5 All bullet« fall»! to per^trate. Caliber .^-40 Duplex 20^ Z 7aur bullet« ^ave canplete per[froat bullet) fcration« and troe bullet failed to penetrate. • Defimtlon« for varlou» type« of penetratlona are given in the peoetra■Aon teat data included in Appendix C. RECARÜATIOg MST i»e«t ü an average far fire CALOJUTltD vsLocmr rOR RAM3I VEL0CITX 0BTAIHED RBTAKHATION Cartrtdse, Bell, Caliber .22, Carbine 0 2981 8955 IM iiio aaa? aac» 27 300 1523 1561 52 500 965 Jlf • * Bullet« perforated araor wat but rmlocLty uaa not recorded. Cartndsa, Ball, Caliber .22, Ad 0 Ita 300 500 331^ 2919 2550 2092 3318 3015 2777 2326 6 16 15 20 Cartrvdge, Ball, Caliber, .22 wltii 50-Ozmln BiOlat 0 IkO 300 500 3795 3205 255* iail 30^2 3302 a6V* 1689 CONnDBfTIAL 21 26 35 U CONFIOKNTUL KfTÄRDATlOH TKDT TO* r«l»rd»tl<» to perforatlDg th# amor vent le an acero^e for ( rouodi UHIBBB otherwl»e lndlca.t«d. CALCULAMD VELOCITY KB BABQE VELOCITY OMAIIIKD num (»d«) On" iif, tall. Caliber .22 hjua^pwl««* with 50-0ralo Pull tet«h Front BuU«t for the QU.lb«T .21-00 Bightt Cartria»e. 0 1W 300 500 3590 2853 205Ö X651 35*3 2213 1^3 42 61 C&rtrldgtt, Ball, CU.lb»r .25 mm 75-Qr«,in Bullet 0 Ml 300 500 K 3W* 293& 2222 ab 1Ä50 w 32 IS Cfcrtrld««, tell. aOlbsr .?7 V%m 95-Omin Bullet 0 1W 300 500 31*3 a699 8203 1650 J1.1H 2T74 12 17 18 40 2768 2359 2O0O 15^ 9 12 17 20 2537 18*0 1255 1022 M m Ortridas, Bftll, CBLllb«- .30, VIZ 0 ito 300 R336 X607 Chrtrldi«, tell. CMlb«- .30, Duplex nrat Bullst no 300 0 2511 500 »kl 9 3*cood Bullet 0 235* IkO 1727 300 U9Q ■100 933 • rigurM fro» rmfmt. s: U59 10Q6 COMFIMNT1AL 46 2. 38 83 CONFIDENTIAL RETAPnVnr.1 TKT CALCULAISI) VELOCIIT PM RAÄ01 RA»C" tya.) (**•) i-rrid« f, aiU, Caliber ■/KLOCITT OBTAISED Iff) 1tfiTARDATIOI ffp.) .30 , Triplex 0 IkO JOO 50O ^79 1566 961 722 0 11*0 300 500 2g First Bullet 2600 61* 1539 mi 9*1 109 135 Second Sullet 90» 632 IHlrd Bullet 0 »95 1331 300 885 5O0 662 Flgun >• are for one r^iod only. Figur»» «r« for throe round« emlj. iho «ST» as 2515 ae U20 1165 799» 111 148 25?» 21.28 1293»« K«»' 86 105— 1I.5- njcarm rnvtanos VBLOCITT The volualtjr is given in feet per eecocui »t ! feet. AVDUflE >tAXOIW HIRMJW EÄTTO« VASIATiWI WEAI VAKIATIOH 125« 1316 1205 m 26.3 Fifty-two percent of the projectile« inpacted in a 30~inch clrcle at W yard«. PEWKTOATIOB* [•he projectile perforated one aide of the HI itesl tielnet and liner at 300 yards and it gave « ccaplete penetration in one aide of the helast and liner at ^00 /ard«. • IVfloltians for various tyjic« of penetxat na are siren in the penetration taet date included in Appendix L. 23 CONFIMtNTUi. COMrSDlMTiAL IV. — 0B6»VATI0W3 A. OSOTS C«rtea TT ODD 3383 gavs gsharal t««t rvqulreneata. Mor- iMfeCXM requliwtnt» »ere given In ft telepboo* oonverjatlOQ OD -'r> February 195T by It»' JBookwBeyei-. H* requested tb»t the fcllowiog teats be coaäucCed .J-I-,,; . ■miau» nuaber of weupoca of e*eb type.11 i-ruaaure - 2. Vtloeltyat BUtsle, 300 and 500 yard« . 3. Mutlnw ordlante at 300 and 500 yards. 4 Accuracy at 100 aod 300 yards. 5' PeDBtratloo in ate«! beXuets it 300 and 5UO yarda. 8- In a telephone oowMrsatlon 00 10 May 1957 Mr- Bonfeoiteyer advlaed tbat additional test data ware required by tbe Balllatic Researoh Laboratorins and taat autbarlcation to eonduet thia wark la contained la CRPTB Boidianeyer TT OBD 7771- Mr- DoMü-d BaU, BBL, on 10 May 1957, directed tbat the foUwipg addltlooaJ. teats be conducted: !■ Datemlaa the velocity of each projectile In a Duplex aod Triplex round at rat^ea of 0, 140, 300 and 500 yards, 2 Dataneine the renaining velocity aa well, as the initial valocity oi caliber .22, o»lib«r .25, oaliber .27 and oallher .30 rounda, as well at. Duplex and Triplex rounds, in the penetration of body armor at rangee of O, 140, 300 and 500 yards. 3. Determine tbe point at wnlch the Duplex and Triplex rounds wLU p«r forat« the steel holnet and l/t-lnch steel plate. C. Mr. W- C- BenJe-TKin, Jr., BKL, on 9 JUly requeetad that teats be conducted using a caliber .32, 50-graln bullet. Xc MAB requaated tbat t.nbullet be leaded in an appropriate case to give a puzale velocity of 35OO feet per seoond, and tbat tlM-of-flight, accuracy, penetration and ratar* dation (in annor vests) teats ba conducted. D. Several tests were iimted by the availability of appropriate teat weapons and amamltlon. X. ficperlenced riflMen were ea^loyed in this teat. 1. Savlit, age 30 is five feet nine loche« in height and weigh" I60 pounds. Be has bad five years of eznerlence »t this statioo aa a rtlllMlll gunaer. Ha holds the rating of "■aater" 1:. National Rifle Aafoclatioo aaaJj ■ bore rifle coa^titlona. COMRDKNTIAL CONFIDEKTIAL rUffcoutj age 5J, la 31JC f«et la height, und weighs 200 pounds. He niLS n d 14 yearn of oxperlence tn ctmpetlttve rifle and pl«tol »faootlngSe ie a itaster sergeant on active duty la the Amy- He holds the rating of *exp?ri'' In National Plfle Ansociatloa high-power rifle couipetitloaB. Moore, age l*3> 1" six feet one inch in height and weighs 100 pounds' HL- has had cooslderable experience la firing various types of weapons *Qd Iwlda the rating of "natter in various type« of National Rifle Association rifle competltloo». 4. Valeatini, age 20 is five feet nine Inches in height and weighs IkO pounds. He has had two years of experience lr. high-power rifle competitions and holds the rating of "wastor" in NatlonaJ. P.lfla Association h!^h-power rifle cowpetitlonc ". Cartridge, Ball, Caliber .22, TW gave poor accuracy In this test. In B previous test (results are contained in the Fifty-Second Report on Ordnance Corps Project ÜC T32-2Q151 haadloaded rouods using reoltod cases, 1)2 grains of h350 ^ropellaiit, and a 6d-grain bullet geve an average mean radius and eattre»e spread of 0.39 and 0.90 inch respectively when fired at a range of 100 yards fron a test weapon noun «1 In a aachloe rest. In this test the T48 rouad save an average msan radius and extrewe spread of 30 and 6-3 inchei^ respectively when fired under «lullar conditloos. Additional firing was conducted to determine, if possible, which component was responsible for the low level of accuracy, nie test results show that the bullet contt'ibutad largely to the poor accuracy although the propellant also appeared to affect the accuracy idversaly. When removed from the case with an inertia-typ« bullet puller, it was observed that the TW! bullet urns dcfoimed soaewhat at the rear of tho cauoelure. 0. it was expected that consideratee retardation would occur when the various bullets perforated the armor vest. Therefore, the screenn for recording the bullet's velocity on the far side of the vest were placed close to the vest and ten feet apart in order to obtain a high probability of the bullet passing over the screen». This arrangement was desirable from the viewpoint if recording a large percentage of the velocities after the bullet passed through the vest. However, an appreciable error was introduced in the velocities recorded beoatse of UM abort distance between the screens. For this reason, the retardation figures are somewhat 1 neons la teat. Clnce five rounds were fired for each condition ihe average figure approximates the retardation. A reteet was fired using the first Duplex bullet and a charge of 7.0 grains of propellant since the retardation figure in the original test was several tines that obtained with übe second Duplax bullet at a similar velocity. Bie i-etest gave a retardation figure comparable wllb that for the I jend bullet, '»lerefor«, in error in Instrumentation la suspected lu \ M original test. CONFIDENTIAL CONFIÜENTIAL K. Tta caliber ,30 IMpl«* round gave A pat'ern which Jmd »pvpral vwll■i-.-fined cbaracteristlcs. In the accuracy viiats UM axp^sed bullet oa aa^ü rouod uaa coated with lals ti&virig a distinctive color BO -^hat its Impact M the target eoula be identified. It va« obaerrad cbAt the firat bullet» in each round made a group which !• conparatü.« In »lie UJ uhat obtained Friav e. standard Ml rifle when ualng aiBiiiltlon of average quality. Hie MMMtf bullet la each round generally inpactad above the firat bullets ae ahaur In photograph F25362 Included In Appendix LI- Toe caliber .30 TTlpli-x round bad no wall-defined accuracy chars, terisfekH aa did the Duplex- In firing the Triplex at a range of 10O yard« a suvber of ahots KLsaed a 6 x 6-foot -arget. An additional tear, «aa conducted at jO yard» In order to detnalae the accuracy. In the ^0-yard %tM% which was flrad from a bench reat by an expert rlflaaan, the flrat bullet waa identlflad aa described pravlouBly. Also, the bolea nade by 'Jie thre* bulletH« la a aingle round wora Identified by Lurking after firing each r.jiuid. therefore, the location of tt« i«pact of the fli'at bullet, as well aa the pattern of eanh round, could be obaerved- Riotograph S26oh',' deaoostratee that tlte firat bullet Lay br; an extreme shot in the group. The size of the pattern made with each round varies greatly, y. ixmcumjons Since the purpose of this teat waa to provide tfata for uae in the atudy of a broad aolvo prograsi which Includea both tactical an wall ae technical conaideratiooa, no conclusions are cade. L. r. MOCRE Ordnance Engineer tmxmmt^f >QQHi «. BROW» v Cauef, Infantry and Aircraft Weapon« Division WILLIAH C. EUIVT3 Chief, Äall Am« and Aircraft Weapoca Branch APHtOVB): <?/o.<r/^ Asjiatant to the Deputy Director for eiglneerlng Testlag QevelopMent and Proof Services COMFIDCNTUI. Firing Record Ho. S-462^6, To Conduct Velocity, Preieure, Acfiur&cy aad Ptnctration Teuta on Caliber .22, .25 and 87 Amuoltlon. rifty-Sacond Report on proJ»«t Ho. TS2-20ip r.itaed "A Tnut of Rifle, CsLllber- 30, Aimllte-. ■mirty-Sixth Report .-m Project Ho. TSl-Z title« "A Test MI Flechette-Lcttcted 3tmll Anas AnHunltlon". AFFBHDICES DIHECnVIt TKL1TYPE5 • mmn B PUSCTIO« REPORTE • - - . - APPOOJIX c MM DATA -----.. APPBMDIX D PBDTOCaiAPKS ------ APPIMDIX I utsmTamrm ------ TOB PAT« k-lk.l/ 471/ Ik FSB- ! - .UTICH —-p 4 PS aro ETjilU 1^57 7EB lh PP BUETOB B« BOBPC 96H P ijzidWz pa oamtü QA VÄiimc TO CO li— PO MD DA <3KXC BT FROM OKMB CWHB T OBD3563 F'-mcm CArnni-nAins. axgasT imWHfffWi TBST BK ccanwcTED EMPLOmw SALVO BIFLB MATSRIE, FCFWABDED YC30B STATl^W FBCM FOPT aanrpRj. IBSTS aaouu) DICLLI« VKLOCITY, PHmRATTOB AT 3^t AHD 50 YARDS. BT CW 0803303 3W 500 TEl-2 13/22022 ftccuHAci, AS WELL AS wsufm COST CHARGEABLE m PROJECT TS1-2. rax -ooi a/cat -13 MAY i ACnCB o s M DITO D/f Info P--W0D 1957 ÜAJ 13 raft cFDPtr atps HOORE ntOH GBDTS BOKKOOETIB TT OROTTTl roHSOM BCmOHETBf-MOCRE RT IT 33Ö3 ETD 13 ?8B 57 PMHK fflOGRAM f ■or si RzsTOirnm TO SALVO MATKBIEL CMLI. MMHHTIOR AS «BTSSSAKT TO SDFFLT CCHPUCTK mcurcED nt THIS PPOGRAH FT era «irrm 3383 13 57 ontSi WKAFOHS AXD ntroRHATtoii SBJOLD BE APPENDIX B A - Aiito»Uc, - Sovlautcoktlc. FT - Failure to fa«dWS - Failure to ejnc.t. HE - Failure to «xtract. SS - Sloele «Hot. BOB - BOit uver-rodo baae of round In faedlng froe ■agaclne. BUB - Bolt imdar-rode bue ot round In reedlns ftx» «sgazincCRB - Ctiaplfftr. round ejectttd. iii.'B - Hound oaiight on rear of barr-J., SAT - ;Ätiefactory. CONFIDENTIAf. FWICTICTi R£POBT ! TOIAL HO. OF TOO FIXED CM TEST HO. BD6 riPSD TTPE FIBE ITfflCTICM RBiAilKS Carbine, Caliber .22, H2, Serial Munbei- 714^'J'. Weight of carbloo vlth empty ragaEine 5.7a Ibe. Average trigger pull 6.6 lbs. CarUia«e, BeLQ,, Caliber .22, Carbine. AUTCWATTC ACCURACY IE3T Procedure called for firing in three-round bursts. 30 April 1957 Poaltiora: Prone