I just bought a 457 in 22lr! Haven't had a chance to shoot it yet, still waiting on the scope.
With most firearms I like to keep a few sets of whatever parts are known to wear or need periodic replacement. For example, recoil springs, slide stops in the case of 75's, maybe an extractor and some extractor springs, a couple roll pins, etc.
I can't find any recommendations for the 457 series of rifles. Is this because firearms like these just don't need periodic parts replacement the way a lot of semi-autos might?