PROGRAM OF PRELIMINARY TESTS OF SELF-LOADING MAGAZINE RIFLES
AND CARBINES SUBMITTED BY INVENTORS AT THE SPRINGFIELD ARMORY
1. The piece
will be dismounted and assembled, and the times, number and kinds of tools required
for each of the following operations noted”
(a) To dismount the breech and magazine mechanism with the exception of the lock
(b) To dismount the lock.
(c) To assemble the lock.
(d) To complete the assembling of the piece. The number of parts and the kinds
of springs will be recorded. The number of pins and screws will also be noted.
FIRING – The piece will be fired as a self-loader 100 rounds into butt
to observe the general behavior. No time will be taken and the firing will be
deliberate enough to prevent the necessity of cooling during this test.
WITH ACCURACY – The piece will be fired from the shoulder at a target 6’ x
2’, range 100 feet, under the following circumstances, the cartridge disposed
at will upon a table.
(a) Number of shots and hits firing for one minute, using gun as a self-loader.
Test begun with magazine empty.
(b) Number of shots and hits firing for one minute, using gun as a repeater.
Test begun while magazine empty. Any cartridge missing fire in this or other
tests will be opened to ascertain the cause of failure.
AT WILL – The same as Test Three, except that a piece may be fired from
the hip without aim into a butt at short range. Hits will not be considered.
5. DUST – With
the mechanism closed, and both ends of the barrel tightly corked, the piece will
be exposed in the box prepared for that purpose to blast of fine sand for two
minutes and then removed. The surplus sand may be removed by blowing thereon,
jarring the piece or wiping with the bare hand only. It will then be fired twenty
rounds under the following condition.:
(a) Magazine empty when exposed to dust. Before firing, charge the magazine and
fire as self-loader.
(b) Magazine loaded when exposed to dust. Remove and wipe cartridges, re-load
and fire as above.
In case the self-loading mechanism fails to work in either tests (a) and (b)
the piece will then be tried as a repeater.
6. VELOCITY – The
velocity of the bullet at a distance of 53 feet from the muzzle will be determined,
taking the mean of five shots.
7. ENDURANCE – The
piece will then be fired deliberately 500 rounds as a self-loader for endurance,
cooling the barrel after each 50 rounds.
8. EASE OF
MANIPULATION – The general working of the piece will then be examined by
the members of the Board.
CHARGES – The piece t be fired 12 rounds as a self-loader with cartridges
in which the powder charge has been decreased so that the first four fired will
give pressures 25% less, the second four 15%, and the last four 10% less than
the service pressure.
CHARGES – The piece to be fired five times as a single loader with cartridges
in which the charge of powder is so increased as to produce a pressure in the
chamber of 64,000 pounds per square inch.
PRIMERS – The piece will be fired once with a service cartridge in which
the primer has been thinned so as to insure piercing.
12. RUST – The
mechanism will be thoroughly cleansed of grease, the ends of the barrel tightly
corked, and the piece then placed in a solution of sal ammoniac for five minutes.
After exposure to the open air for twenty-four hours, ten shots will be fired
into a sand butt, using the piece as a self-loader. In case the self-loading
mechanism fails to work, the piece will then be tried as a repeater.
GENERAL REMARKS – During
the above tests the piece will be entirely in the hands of the Board and no alterations
or repairs other than those possible on the ground will be allowed, except by
special permission of the Board. If the piece fails in any test the remainder
of the program may be discontinued in the discretion of the Board. Any piece
which successfully passes the foregoing tests may be subjected to such supplementary
tests to further determine its endurance or other qualities as may be presented
by the Commanding Officer.