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Sport45 · October 9, 2010, 02:53 AM

Welcome to The Firing Line!

It's neck tension, not crimp that is supposed to hold the bullet in place. Back the die out so that it doesn't crimp and see what happens. I don't crimp .223 for my AR's. If you feel you must, use the least amount of crimp you can into the cannelure. The case mouth should not dig into the side of the bullet. I don't recommend any crimp at all if the bullet doesn't have a cannelure. Why deform a perfectly good bullet?

October 9, 2010, 02:53 AM	#2
Sport45 Senior Member Join Date: May 26, 1999 Location: Too close to Houston Posts: 4,196	Welcome to The Firing Line! It's neck tension, not crimp that is supposed to hold the bullet in place. Back the die out so that it doesn't crimp and see what happens. I don't crimp .223 for my AR's. If you feel you must, use the least amount of crimp you can into the cannelure. The case mouth should not dig into the side of the bullet. I don't recommend any crimp at all if the bullet doesn't have a cannelure. Why deform a perfectly good bullet? __________________ Proud member of the NRA and Texas State Rifle Association. Registered and active voter.