Quite frequently (probably one in three, one in four times) my CZ fails to fire last cartridge in the magazine (happens with all the mags, CZ is always well lubricated). I suspect bolt carrier drags a little on magazine followers and the cartridge doesn't chamber properly. As my CZ has at least 1000 rounds through her, I don't think I can hope the problem will 'iron itself' in time. Any ideas how to go about fixing it will be greatly appreciated.
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