Grouse, i use a lot of 18-8 stainless bolts in my projects. They resist rusting and are very strong. No, i ain't a metallurgist but my son is. Ever wonder why they use stainless steel in some rifle barrels? A stainless steel rifle barrel shows no more wear in the forcing cone area than a non-stainless barrel that has been fired the same number of times.

You can easily cut the breechplug of an Encore with a worn out Swiss file, i just did that.

Grouse, you need to take a chill pill.