Yeah, I worry every day that my 1951 (est.) vintage Mauser is about to fall apart.....just because of it's age. Heck, I am about to fall apart (in part due to age)......so why not the rifle ?
The fact is, a properly designed, well built rifle, well cared for and used with loads below the maximum for the cartridge (thus, reducing barrel erosion) CAN last more than a lifetime. How much longer should it last ?