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104-10216-10234 JFK Assassination Records Archives 1 (7/1/1964)

handle is hein.jfk/jfkarch45295 and id is 1 raw text is: 













                                               1 July 1964
MNDRANDUM  FOR THE RR0
SUBJECT:  Test of Open Sight good for 7.6A   Belgium (PAL) RI


A)  Memo for .Red. dated 25 May 194, Sbject:   ?A
    Silencers/Sights, from C/WR/8A/MDB/P
8)  Memo for Red, dated 10 June 1964, Subject:  T
    Of Modified Sights for 7.62 Belgium (PAL) Rif


         On  15 and 16 June 1964. the undersigned and Mr.   ]
         TSD/SDB went to          to test an open sight hood
 O7.&2= Belgium (FAL) AiIs developed in answer to Ref. A.
 The  odified Williams peop sight developed previously in answ
 to Ref. A and reported on in Ref. B. proved unsatisfactory to
 requester. The snap-on sight hood was then developed on a qu
 reaction basis to be simpler to install and easier to use tha
 the illias  sight.  In addition some improved underloaded 7.
 KATD rounds having soft. annealed cases and aream of wheat t
were tested for performance.  These were developed in hopes o


1O4.iO216~1O234


      2.  The open sight hood snaps over the existing rear sight
 of the VAL rifle, and in theory makes shooting in poor light or
 at aght  easier.  It can be used with either standard factory
 loads or the underloaded anunition  in conjunction with the muzzle
 attachment silencer.  The notch on the rear sight hood is W shaped
 and raised to compensate for the more curving trajectory of the low
 velocity amunition.   The hood is easily detached making the con-
 Ventional peop aght  available any time It is desired.

     3. .The attached data sheet summarizes the test results.  It
was found that some familiarization was necessary  to get used to
thd open sight.  Under  ideal conditions the sight was as easy to
use as the peop sight although It was more difficult to maintain
uniform vertical grouping.  The relationship between the eye and
rear sight was found to be very critical.  An the tests proceeded
a change was noted in the point of impact vs. point of aim which was
thought to be due to a change In sight picture on the part of the
undersigned.


                  W  vsovowammnt~nwastond  to be quite consistant
La performane.   The use of cress of wheat filler to tamp the powder
Charge against the primer was om attempt to get moe  even ignition
i~th correspondingly improved acuracy.   The expended cartridge
cas*  were checked periodicallyand  an evideme  ws  ftoa  of the
soft annealed cases not expanding properly.  During the tets  the
rifle and amunition  combination instilled a degree of confidence
in the uadereid not preast in the previous tests.


WNT


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