The Firing Line Forums - View Single Post - Best concentricity sizing method I have used

Bart B. · March 1, 2021, 01:13 PM

When a case is fully into a full length sizing die with an O-ring under its lock ring, does the O-ring compress any amount when the case is pulled out of the die?

March 1, 2021, 01:13 PM	#61
Bart B. Senior Member Join Date: February 15, 2009 Posts: 8,927	When a case is fully into a full length sizing die with an O-ring under its lock ring, does the O-ring compress any amount when the case is pulled out of the die?