I beg anyone who is thinking about heating an action to 1000*F during a nitride process to contact the manufacture of the rifle before they proceed.
Per the heat treating chart for 4140 steel heating to annealing to 1000*F severely weakens the yield and tensile strength. This is serious stuff, if an action fails you can die.
https://www.practicalmachinist.com/...-special-application-4140heat_strain.jpghttps://www.snipershide.com/shooting/threads/to-nitride-or-not-to-nitride.6252625/Where the nitriding becomes relevant is that in this instance, as in: When you step on your crank and make a mistake like this, the action does not merely split apart and lock up the bolt. It goes BOOM and gun parts become shrapnel.
