I have an original contender, that I've owned and shot for many years. A month ago at the local range it misfired. 35 years handloading and I have never had a misfire before. Out of the next 10 rounds, only 3 fired. This is with the 30-30 barrel, so switched to the 22 rimfire with about the same results. I started following this forum looking for help. There is a lot of information here, and I hope this wasn't just covered recently. I feel the first thing I should try is the hammer spring. Called TC and they sent me one, I've been studying it for awhile and am looking for help. Anybody that could offer instructions would be greatly appreciated. It looks like it takes three hands.