The subject innovation is out also the examination of the enclosed as to achieve a durability test under the same conditions without carrying out firing the detonator sealing ring, which was tightly closed in a propelling gas by combustion of pushing when the self-propelled artillery and mortar firing charges directly conventionally primed ring the device is not being provided is that the shooting by sensory detection devise present in a disadvantage that accuracy is lowered is the primer sealing ring 20. the insert ring stopper 28 and a connection formation and the insert ring stopper 28 is built-in arranged on one side of the cam (14, which is fastened to the latch 13, which is arranged in the vertical direction of the case 27. the ball embedded ball (270) is provided in the guide 10 be installed at the bottom of the trigger element 17 ) peripheral surface of toward the movement into the primer house 26 which holds the guide 10, the ball 30 is the primer is exploded while moving primer sealing ring (29) of, and the front is such that yirueoseo elastic deformation gas is sealed Configuration Led to the design of the optimum shape over Primer sealing ring is provided to be capable of polishing the marksmanship increase the accuracy.
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