by No1Mk3 » 07 Apr 2016, 12:14 pm
G'day MakeItHappenCaptain,
There is no practicable temperature, metallurgically speaking, that you can possibly achieve with a repeating rifle where you would suffer true burn out. Machine guns can reach the Point of Decalescence and continue to operate for a while, though life is dramatically shortened, think MG42, etc. The best you might make is tempering straw, which equates to appx 220C. As the others posted above, to get best life, rest when shots start to fall off, Cheers.