Hi guys,
Thanks for the advice. I took the USH apart and cleaned it up and degreased a bit around the trigger assembly this morning. Let me explain what happens in a bit more detail. I line up my shot, pull the trigger and the hammer drops down, but the gun doesn't fire. When I examine the shell, the primer has a small dent in it, but not nearly the size of the dent as a successful fire. So I know the firing pin is hitting the shell every time, so I don't think it's a safety issue. I didn't understand the part you guys were saying about the falling block and pulling the trigger in a certain way. It's a single shot, how many ways can there be to shoot it right? Cock the hammer and pull the trigger has always worked for me. So I will see if it was the low temperatures and the grease issue, but if I'm not understanding the situation properly, please correct me. I appreciate your help.
Thanks,
Anthropas