The Firing Line Forums - View Single Post - Don't Over Crimp But You Do Have To Crimp Enough

m&p45acp10+1 · February 23, 2013, 10:20 AM

Sounds good to me if they are working. Just remember to take a factory round, and run your finger nail over the bullet towards the base of the cartridge. You should feel a slight catch at the case mouth. Crimping for semi auto rounds is not crimping actually. You are just removing the flare, and ironing the case back straight. I do the thumb nail test on all of my semi auto reloads.

February 23, 2013, 10:20 AM	#3
m&p45acp10+1 Senior Member Join Date: May 3, 2009 Location: Central Texas Posts: 3,930	Sounds good to me if they are working. Just remember to take a factory round, and run your finger nail over the bullet towards the base of the cartridge. You should feel a slight catch at the case mouth. Crimping for semi auto rounds is not crimping actually. You are just removing the flare, and ironing the case back straight. I do the thumb nail test on all of my semi auto reloads. __________________ No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.