Well...

As far as what the gunsmith did with the "metal parts", I have no idea. I asked him to look at the rifle because of the problems I was having. He suggested tearing down the rifle, cleaning it, re-assembling it, and test firing. After re-assembly, the test firing worked fine. But again, it wasn't cold out.

My rifle is Pre-64 (Serial NO. 46600), and I'm trying to figure out if grandpa had any recall work done on it before I got it. I don't remember the gunsmith saying anything about a recall, but that was a few years ago.

I have no idea if what the gunsmith did had any effect on the performance of the rifle or not.

I have no idea what causes the problem (cold weather only). I always assumed it was oil related, but I'm assuming the gunsmith would have cleaned any excess oil off, and didn't apply to much.

After reading a few posts, I could try finding new mags. That might help.

Maybe I'll just take it to a local gunsmith again, and see what has been, or can be done.

Thanks,