104-10216-10174 10 June 1964 r oe FOR MENSRATOUY SUBJECT ;: BEPERINCE: TiS RECORD ti; + Tosts of Modified Sights for 7,62 Bolgiua (FAL) Rifle “eno for Red, cated 23 May 64, Bubject FAL Siloncers Sights, from C/UB/SA/EOD/DY 1. Oa 2 June 1964, Ur, | TSD/ER and the : -wugdersicned went to Isolation to test a nodified Sight and a telescopic sight davelopad for the 7.62 B3lgium Gal) Bifle in “ ansver to raforence a). : Of Er, and Ur, | 2. The first tests wore conducted with a Willi Standard FAL rear sight. peep than the FAL sisht and has a wider rangco of elevation &S well as nore positive control over both Glevation Tho nain purpose of the test was to est @n the alusinum block to match and windars, ' be = i the graduations on tho Willians ‘eight erd allow the sight to be sot visually for tho desired range ", - GCG the woapon was zeroad, ‘Pounds were used. Light rain which cradually increased during the cay served to coxplicate the precedura, The test ‘Fesults et ranges from 25 ycs. to 130 y<s,. using the Willdians .. Sight are summarized in Attachnoat I. were obtained throurhout the tests and one attenst . to duplicate 7; the 100 yd, zoro res g L ES a z s . 4. fo “ Mounting rings front and resr to fit tho rear Gas port anc roar i. . Gigat mount respectively then tested, The scope was attached to ,.,.the rifle vith aisficulty and attenpts to zero it wors frustrated sby the insbdility to deterzine where the rifle was Saootinzg., The /, Bountine .; Wee Cctorained that the mount could not be attached firmly enough -7it0 insure in retaining a proper zero, Tho test with the scose /;Was aborted, “Ff Tae tests were perforuod with tho assistance are ans Peep sicht oS modified te fit an alusinun block thich was mounted in nlace of the h. Tao Williams sight kas a larceor dianeter settings ablish a point of raferonce an intensit wxceedingly erratic results ulted in a different setting later in the day. é. 2X seope of Jaraneso manufacture equipped with sluninus \ tage ela wth wee cance aes mt Cot oe. . adic GM Oe RRR Se ee TINO’ tog Aus Ba easel ve, &. Firing commenced from 100 yards at a silhoustte target _Golng the hood ef a jeep as = rest. Esth uncerloaded and full losd y . noved thile attexpti: ; to adjust the olovation knob and at the ail rong an tes ‘ i
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14-00000 - ee ATTACHMENT 1 “t+. Walliams Peep Sight fe AL, meses gore » 1 Ei ett Pee La! weeaehy i f , At. 100 yds., Zull loads At 25 ycs., reduced loads . , Raise eight 60 clicks from bottom Hatch ref. line to 4th line from top St 50 ycds,, reduced loads Raises sight 80 clicks froze bottom Listeh ref, line to Sth line from top at 7syds., reduced loads . Raise sicht 86 to 110 clicks frou bottom ‘ . Anmunition performance very erratic, wide variance on tarcet At 100 yds,, reduced losds Raise sight 120 to 160 clicks o Sa! 3 ; ist trial, 160 clicks, little variance . Se 2B, sch réf, line to Oth line from top ; . 2nd trial 3 hrs. later, 120 clicks psy il. Mateh ref. line tc 7th line from top ae At 150 yds., reduced loads Raise sieht 230 clicks (1 trial) Kateh rof, line to 12.5 line from top — Couta not mount telescopic sight properly. ., Shooting in scope, found it moved, Raise sight 4 clicks from botton | \ Raise sight 6 clicks from bottom, internittant vain throughout tests. etter firing. contribute to erratic performance, . a8 leak. new Benet Cases with reduced loads were noted to be blackened at nect : suspected to be low pressures not causing .. eufficient case exnansion to obtain proper seal, Recommend gas port be turned -: #0 off position to prevent action from opening and allowing Algo investigate soft annealing case necks, ~ * at . Arne sue ar egy oe bata 8 gerresionyr me ed Fae 0 Spam sateen: west h4 re robe rae el ahaha ran eRe pends Potrked Aenea 4 coe , - we . x ” Po ares roe >? S Fins anette ipheashedire sect heh 4 tahoe neakrmrerte ho veat Roa 4 Sa Can WARS Lea beeihidide hear ORL MB. This an 3 ; 2 a + a