Okay, I've put about 200 rounds through my new used M1 and I like it very much. What spare/replacement parts do I need to get? I do not like having a broken gun and having to sit around and wait for parts to arrive, so I like to stock up on what I think I might need. Also, I've noticed that when I shoot and the barrel starts to get warm the choke loosens up, when it cools down or is cold it is tight. Is this normal? I don't want to tighten it when it's warm, so should I just leave it alone? Can I shoot slugs with the choke in?
Thanks
garyoNC