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这个JohnKSa懂挺多的，说的蛮有道理。 基本上就是打一两发没什么事，打多了的话一是磨损拉壳钩，拉壳钩在帮你做headspace，所以时间长了有可能导致excessive headspace，击针会把底火打破，pierced primers；二是因为380比9毫米短，弹头在进入枪管的时候会在枪膛前部headspace的地方被切削下来一点点，时间长了会在那里积累起来，不打扫干净导致以后打9毫米无法正常闭锁，甚至out of battery击发而炸膛。。。
It's not especially dangerous to do it once or twice. It's hard on the extractor since it ends up having to hold the round in place while the firing pin strikes it instead of having the chamber do the job. You can end up with what amounts to "excessive headspace" depending on how well the extractor does that job. That can cause pierced primers.
If you do it a lot, there's a small potential for building up bullet material at the front of the chamber. That can make it difficult to chamber the proper rounds in the gun, and, if there's enough of it, it could even create a partial obstruction which could result in a catastrophic incident.
https://www.thehighroad.org/inde ... 19-firearms.797865/ |
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发表于 2019-4-18 15:18
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形状太相似，不注意根本分不出。