I noticed one problem when I proof fired this rifle yesterday. Because of the large diameter of the shotgun firing pins, and their sloppy fit in the discs, I was getting a lot more primer flow than I can live with. Today I stripped the action down. First I held the pins in a collet in my lathe and reduced their diameters from the original .096" down to .070". Then I drilled out the discs with a # 28 drill bit and threaded the holes 8-40. Then I threaded in 8-40 screws, locked in place with Loctite Black Max, drilled through them with a #50 drill bit (.070"), and dressed them down flush with the discs. A touch up of bluing, reassembly with a dab of blue Loctite, and problem solved!