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Author Topic: Taper crimp for 9MM  (Read 279 times)

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Offline vanbuzen9

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Taper crimp for 9MM
« on: May 14, 2005, 12:08:29 PM »
Hi all,

I am new to reloading, and have a question on taper-crimping.  I need any info you guys can give me on this subject (all the do's and dont's).
I am reloading for 9mm.

thanks alot,
vanbuzen9
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Offline ricciardelli

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Taper crimp for 9MM
« Reply #1 on: May 14, 2005, 01:36:33 PM »
No biggie...just use enough taper to keep the bullet from moving around.
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Offline Flash

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Taper crimp for 9MM
« Reply #2 on: May 14, 2005, 02:18:31 PM »
Don't over crimp since that will change the bullet diameter and make them keyhole(tumble). Use a straight edge and rest the loaded round against the edge and adjust the crimp until the daylight disappears. The belled case mouth will make a gap where the light will pass through when held against a straight edge and a perfect taper will be straight down without any light getting past. A good taper can correct feeding and accuracy problems and increase velocity.
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Offline jgalar

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Taper crimp for 9MM
« Reply #3 on: May 14, 2005, 04:34:31 PM »
With 9mm I just set the crimp to remove the bell in the mouth.
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