1·Results show that the effect of charge weight variation on the muzzle velocity probable error is not significant when the variation is within normal range.
结果表明，装药量在其正常范围内波动时，装药量的变化对初速或然误差的影响并不显著。
2·Precision fire of AA gun must accurately confirm and correct muzzle velocity deviation and adjustment.
高炮要准确射击必须准确确定和修正初速偏差量。
3·The variation of muzzle velocity with piston weight is increased first, and then decreased.
初速随活塞质量的变化是先增大而后减少。
4·This paper analyses the effective factors and restricted methods of combustible cartridge case charge on muzzle velocity probable error.
分析了可燃药筒对初速或然误差的影响因素及限制办法。