Back when we were having a cold snap and it was about -20c, I acquired my t97 and wasn't about to wait for warmer weather to try it. Results were disappointing, at least one failure to feed in each ten round mag, sometimes the first round on release of the bolt, sometimes a round in the middle of the mag. Rarely got through a mag.
I went home, filed a bit off my feed ramps per posts here, and went back out in the bitter cold, again, fail. Mostly rounds slam into the bottom of the chamber and the bullet gets pushed in. Sometimes they bounce up like a stove pipe except on feed rather than extract. Ether way jamming the action open.
I had been using grey polymer LAR mags which everyone says are junk, and the mag it came with, so I acquired a black metal LAR with orange follower. Finally went back out with it today, warm spring weather.
Well. Hundreds of rounds later I cannot make the rifle fail, it ate everything I fed it including going through about 200 rounds of junk norc ammo. No problem.
I did mostly use the new metal mag, but towards the end switched back to grey polymer. About forty rounds through that no problem either, where I never got through ten rounds in a row without a failure before. So maybe it was the cold?
None of my other rifles have ever acted up in the cold before, including my norc m305. Same lubricant on both rifles.
Not that I can likely test this again until next winter, but what might be the cause and what should I look at? Anything I should do differently next winter? And any problem I should look for now that may just have been revealed by the cold?
I went home, filed a bit off my feed ramps per posts here, and went back out in the bitter cold, again, fail. Mostly rounds slam into the bottom of the chamber and the bullet gets pushed in. Sometimes they bounce up like a stove pipe except on feed rather than extract. Ether way jamming the action open.
I had been using grey polymer LAR mags which everyone says are junk, and the mag it came with, so I acquired a black metal LAR with orange follower. Finally went back out with it today, warm spring weather.
Well. Hundreds of rounds later I cannot make the rifle fail, it ate everything I fed it including going through about 200 rounds of junk norc ammo. No problem.
I did mostly use the new metal mag, but towards the end switched back to grey polymer. About forty rounds through that no problem either, where I never got through ten rounds in a row without a failure before. So maybe it was the cold?
None of my other rifles have ever acted up in the cold before, including my norc m305. Same lubricant on both rifles.
Not that I can likely test this again until next winter, but what might be the cause and what should I look at? Anything I should do differently next winter? And any problem I should look for now that may just have been revealed by the cold?
