Free: Contests & Raffles.
I have a Thompson Center Grey Hawk, the first time, i had got some caps from my grandpa that were suppose to be #11 turns out they were #10.75 (grandpas attempt to sabotage me lol) or something like that so they werent going all the way on the nipple. so the first time i pulled the trigger the hammer pounded the cap on and the next time it shot. The second incident i had the smallest bit of crap plugging the nipple. when we got back to camp i found it, cleaned it out and fired no problem.