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Sport45 · March 1, 2006, 09:23 AM

For 45acp you should not see any discernable "neck" or crimp. The diameter for a jacketed bullet is .451 and should not be reduced by the crimp. I think a .469" diameter at the case mouth is considered adequate (or more than adequate) crimping by most.

March 1, 2006, 09:23 AM	#8
Sport45 Senior Member Join Date: May 26, 1999 Location: Too close to Houston Posts: 4,196	For 45acp you should not see any discernable "neck" or crimp. The diameter for a jacketed bullet is .451 and should not be reduced by the crimp. I think a .469" diameter at the case mouth is considered adequate (or more than adequate) crimping by most. __________________ Proud member of the NRA and Texas State Rifle Association. Registered and active voter.