View Single Post
Old January 28, 2012, 09:23 PM   #4
Brian Pfleuger
Moderator Emeritus
 
Join Date: June 25, 2008
Location: Austin, CO
Posts: 19,578
The crimp holds the bullet in place for a bit longer while pressure builds. I've heard that some powders get more consistent ignition if you use a crimp.

It can also be necessary in some semi-autos and lever actions to prevent bullet setback on feeding.

I load only for single shots and bolt actions. I have never crimped any of them and I know most people don't. The only way to know if it helps or hurts you is to try it.
__________________
Nobody plans to screw up their lives...
...they just don't plan not to.
-Andy Stanley
Brian Pfleuger is offline  
 
Page generated in 0.02936 seconds with 8 queries