The only rifle I've ever taken to a gunsmith for repair or suggestions, is a Browning A3. The bolt keeps falling out. Go figure. Never had that happen to one of my Mausers.

My Remington M700 needs careful attention when replacing the bolt after cleaning, as the bolt retention button sticks in the 'release' position.

Never had that happen to one of my Mausers.

I've only been using 98 Mausers since 1968- maybe one day, I'll have trouble with one. Guess I've been 'extra' lucky.