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Brian Enos's Forums... Maku mozo!

weird issue.


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Crimp should not be what is holding the bullet in the case. Neck tension is what holds the bullet. If it spins sounds to me like you could also experience bullet set back which can be extremely dangerous.


Either your bullets are undersized, your brass is crap, or your sizing die isn't doing its job properly. I only crimp enoung to take the "bell" off, maybe slightly more. Over crimping with lead, or plated bullets usually cause accuracy problems.

Are you using a Lee, final crimp die? If so, that could be your problem. The lead downsizes, but, the brass, especially if hardened, springs back.

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