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A casing bottom for a propelling charge including a circular ring shaped (annular) base plate (1) which accommodates a centrally arranged primer sleeve (7) in a form-locking manner. In order to be able to unload ammunition, particularly two-part ammunition including sub-caliber projectiles, the rear

A casing bottom for a propelling charge including a circular ring shaped (annular) base plate (1) which accommodates a centrally arranged primer sleeve (7) in a form-locking manner. In order to be able to unload ammunition, particularly two-part ammunition including sub-caliber projectiles, the rear surface of the primer sleeve is provided with a recess for form-fittingly receiving an extractor. Preferably the recess is of a size which can be accommodated on a sub-caliber projectile.

대표청구항 ▼

A casing bottom for a propelling charge, which casing bottom includes: a base plate in the form of a circular ring; a primer sleeve centrally disposed in said base plate; means for form-lockingly connecting said sleeve to said base plate comprising mating threads on said sleeve and on said base plat

A casing bottom for a propelling charge, which casing bottom includes: a base plate in the form of a circular ring; a primer sleeve centrally disposed in said base plate; means for form-lockingly connecting said sleeve to said base plate comprising mating threads on said sleeve and on said base plate and including a radially extending contact shoulder on an inner edge surface of said base plate and a radially extending collar disposed on an outer circumferential surface of said primer sleeve and engaging said shoulder; and a rotationally symmetrical, undercut, extractor receiving recess formed in a rear surface of said primer sleeve and being open in a rearward direction of said casing bottom.