Assembled my gun and made up a few blanks to shoot in the shop. Using federal primers left barrel would not fire. Using winchester primers both barrel fired but left strike was weaker. Firing pin protrusion same for both pins. Rim cut out left barrel .0068 right Barrel .0060. The head space is set by a locator pin located in the top of breech block going into a pin on top of barrels.

Last edited by GRF; 01/17/16 06:21 PM.