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![handle is hein.jfk/jfkarch16690 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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