Just to add a tad to what SIGSHR said- There's no countdown timer on firearms of course, noting or deciding on when a rifle has run it's course may be different for different folks up until the rifle does something unsafe. Do your fired cases look any different from any other fired cases, such as head separations, backed out primers, splits anywhere? Can the rifle's sear be released by whacking the buttplate with a deadblow hammer? Does the bolt ever ride up upon firing? These things will be some indicators that something is afoul. I don't think you'll ever see the receiver or barrel turn into a hand grenade on that model, it'll stretch before it blows... but probably not in your lifetime.
Rednecks... Keeping the woods critter-free since March 2, 1836. (TX Independence Day)
I'm going to use the words "clip" and "Long Colt" every chance I get. It grinds my gears to see new members attacked when we all know dang good and well what's being refered to.