| 摘要 |
PROBLEM TO BE SOLVED: To position an ammunition so as not to be projected from a cartridge without providing any ammunition holding mechanism in a rammer or without any special operation before the firing operation is started. SOLUTION: When an ammunition 6 is integratedly advanced with a rammer 5 until a cartridge 2 reaches the loading completion position C, the ammunition 6 is stopped at the position not projecting from the cartridge 2 even when the ammunition is detached from the rammer 5 by the inertia and advanced. When the ammunition is projected from the cartridge 2, it is abutted on a stopper part 15 of a forward limiting member, and stopped in a slightly projecting condition from the cartridge 2. On the other hand, when the ammunition t6 is advanced forward of the rammer 5 a little before the loading completion position C, an engagement groove 7 formed on a rear end side of the ammunition 6 is engaged with a stopper part 10 of a rear part limiting member to prevent the advancement of the ammunition 6. The rammer 5 catches up with the ammunition 6 at the second position E immediately before the loading completion position C to advance the ammunition again, and the ammunition 6 is stopped at a specified position similar to a previous case.
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