Originally Posted By SecurityForcesmember:
I'm starting to reload for my PTR, and my AR at some point, but all of my current bullets don't have a cannelure, so I shouldn't crimp, right?
The more I read, the more confused I become. Some folks champion neck tension as being good enough, others claim your gun will explode if you mention firing uncrimped rounds in front of it!
So, who here crimps, how heavy do you crimp, and what loads are you using?
My opinion: If you have sized the neck properly to get the desired neck tension then you do not need to crimp. I have shot thousands of rounds through my AR and none of my handload have been crimped. There is a danger with crimping if you over crimp. It can actually decrease the neck tension. I use a FL sizing die that uses bushings to set the neck OD to achieve the neck tension I want.