Anybody own one of these? I have one that I got used when I was 14 (Im over 30 now) and have put a bazillion rounds through it. i have had problem with the barrel nut coming lose but I fixed that the other day with some lock tite. It still jams on occasion but that only with hotter stuff like cci's stingers. They are real accurate in my rifle, but they do jam. Any ideas on this one? I have worn out a firing pin (it dont look like a pin) and made another out of spring steel that I quenched later on. I am quite shure the home made firing pin isnt the cause for concern here, it is within about .002 of the old one and seems to actually work better than the old one. EJ