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m&p45acp10+1 · April 5, 2011, 06:33 PM

I agree with the over crimping observation. Run a sized case in the shell holder and run it t othe top then srew the die down untill you feel it touch the case mouth. Then work on adjusting your seating plug. I have loaded for 4 of my friends AR rifles none have needed to be crimped, the bullet tension has been enough to keep the bullets in place through the loading and firing cycle.

April 5, 2011, 06:33 PM	#5
m&p45acp10+1 Senior Member Join Date: May 3, 2009 Location: Central Texas Posts: 3,930	I agree with the over crimping observation. Run a sized case in the shell holder and run it t othe top then srew the die down untill you feel it touch the case mouth. Then work on adjusting your seating plug. I have loaded for 4 of my friends AR rifles none have needed to be crimped, the bullet tension has been enough to keep the bullets in place through the loading and firing cycle. __________________ No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.