Great Grandad’s Savage 99 in .300 Savage. It was taken into the woods back in PA a few times after being given to Dad and I by a Great Uncle. The first season we had it, Dad mounted a Leupold 3-9 and bought some Hornady Superformance factory ammo for it and proceeded to kill 3 deer(including a small buck) in less than 30 minutes with it. It came with me out to Wyoming but I doubt it’ll ever see much use. Its sentimental value is far too great to risk anything happening to it. I’d love to buy a different one some day to use once in a while. Once in a while I like to get it out and handle it in admiration.
Aside from heirloom type firearms though, I don’t see much sense in hanging on to a tool that can’t be used. I sometimes cringe a little the first few times a new rifle gets a scratch or scuff on the barrel or stock, but eventually there’s enough of them that it ceases to bother me. That’s what I bought it for, after all.