Just shot it again using Rem Vipers and Rem Thunderbolts. Same problem. May have found one issue. Bolt hangs up a fraction after first shot. If I nudge in, subsequent shot fires. This happened repeatedly. If I do not push it in next shot is a miss-fire. I 'm thinking the springs are weak, or possibly the chamber needs some more cleaning/polishing attention. Firing pin is shorter than yours Gary and I will address that if necessary. Any suggestions on where to find new springs or how to properly clean/polish the chamber? Have not found anything on Numrich or Google search. Further advice welcome. BTW, rifle is real accurate. Groups are about 1" at 50 yards. All are high and I may need a shorter front sight. Using a Marbles #3 that came with the rifle. Rear sight is as low as elevator will go.

Rob

Rob