| 摘要 |
Barrels, a breech structured to interact with such barrel(s), and firearms incorporating such barrels and breech are disclosed. The barrels include a cartridge chamber having an internal surface with a curvature. They also include a guide element located adjacent to and extending away from the cartridge chamber. The guide element is located at a point where a transverse movement of a cartridge being loaded ends during a loading process. The guide element has a surface having a circular shape whose curvature corresponds to the curvature of the internal surface of the cartridge chamber.
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