I put a 'slight', emphasis on 'slight',,, crimp on all my handloads. It's barely noticable with mics. It doesn't matter to me if the bullet has a cannelure or not. Consistency is the goal & that way they're all the same. M1 Garand, 1903 bolt action, semi-auto AR's, whatever.
I don't shoot match so the only time I load one round is when I'm doing load development & I'll still crimp,,,,'slightly'. My ammo isn't handled with kid gloves. Ammo gets bounced around in the truck, ect. I've never had bullet set-back or extension. Just my opinion but crimping works for me.
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Crime Control. NOT Gun Control.
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