The Firing Line Forums - View Single Post - Resizing - FL, Partial, or Neck

m&p45acp10+1 · December 1, 2012, 08:02 PM

I would suggest if using the collet die to also use the dead length seating die as well. It has made more of a difference in my groups than the sizing die did. Though I give a slight edge in group size to the collet die my a slight margin.

I tested seating dies using an RCBS seating die. With, and without crimp, and using the Lee dead length seating die. The seater made a 1/4 inch difference using five shot groups at 100 yards.

December 1, 2012, 08:02 PM	#15
m&p45acp10+1 Senior Member Join Date: May 3, 2009 Location: Central Texas Posts: 3,930	I would suggest if using the collet die to also use the dead length seating die as well. It has made more of a difference in my groups than the sizing die did. Though I give a slight edge in group size to the collet die my a slight margin. I tested seating dies using an RCBS seating die. With, and without crimp, and using the Lee dead length seating die. The seater made a 1/4 inch difference using five shot groups at 100 yards. __________________ No matter how many times you do it and nothing happens it only takes something going wrong one time to kill you.