I won't argue with GGFB hehehe .... one thing i have noticed about the chinese bolts versus G.I. bolts is how the firing pin hole guages. protrusion is generally bang on with the odd one a little long ... haven't met a norc bolt that failed that test though..... but many are at or very near the maximum firing pin hole size..... which would leave those particular bolts more prone to fouling that could cause the firing pin to stick.
regardless of wether you disassemble or if you have compressed air handy, the firing pin should always be free to rattle around.
regardless of wether you disassemble or if you have compressed air handy, the firing pin should always be free to rattle around.