F - Mech Eng,Light,Heat,Weapons – 42 – B
Patent
F - Mech Eng,Light,Heat,Weapons
42
B
F42B 8/10 (2006.01) B21C 37/15 (2006.01) F41A 21/10 (2006.01) F41A 21/18 (2006.01)
Patent
CA 2083284
ABSTRACT The insert consists of an insertable barrel (27) and a loading shell (21). The ratio of the dimension of the inside to the outside of the insertable barrel (27) amounts to more than 60% in the case of an inside diameter of less than 5 mm, and its outer side is completely smooth so that it fits accurately into the bore of the rifle that is to be used. The associated loading shell (21) consists of two separable parts (1, 10). The ammunition (7) of smaller diameter that is to be used can be inserted into the front, female part (1). The rear, male part (10) contains a firing pin (11) that can move axially in a drilling that is incorporated in this part. The rear part (10) of the loading shell is inserted into the front part (1) and secured by means of a bayonet lock. The outside shape of the assembled loading shell (21) that is provided with a charge (7) corresponds to that of a conventional rifle cartridqe for the particular firearm and can be handled in the same way as such a cartridge. In particular, a plurality of loading shells (21) can be loaded into the rifle magazine, and reloading requires only a manual loading movement. The grooves (28) and the lands (29) in the insertable barrel (27) according to the present invention are produced by means of a cold-forming process, in that hammers that are arranged around the periphery of a stationary core that extends to the whole length of the barrel (27) form a standard tube, while the barrel (27) that has been produced is withdrawn from the core, under the hammers, whilst being appropriately rotated.
Marks & Clerk
Suetterlin Karl
LandOfFree
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