Thread: What is the difference between a roll crimp and a taper crimp?
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Old 04-01-2013, 07:49 PM
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Quote:
Originally Posted by mikld View Post
Good pic of crimps. Semi-auto rounds are taper crimped to facilitate feeding/headspace (9mm) and revolver rounds are roll crimped to prevent bullet movement...
Is the taper crimp indenting side of bullet (2nd diagram) a problem to be avoided on 9mm, or OK if some indentation occurs?
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