ORIGINAL: haugenna
I have a Ruger M77 243 about 20-25 years old in good condition. I am having trouble with the bolt catching on the silver insert in the magazine. (sorry don't know the exact name). Also it will not cycle the rounds with out finger adjustment. ANY ADVICE.
From your description it sounds a little like you're saying the bolt is catching on the magazine follower. I'd take it apart, clean the magazine box, spring and follower.
Check for any burrs on the follower. If it still gives you trouble, try replacing the magazine follower and spring. It's simple to do.