Copper washed bullets

mowart

Such as Western uses on their ammo, does it actually help reduce lead fouling or is it for looks ?

bpost

It does reduce (eliminate) leading and allow higher bullet speeds in my experience.

Studebaker Hawk

What did you have in mind, .22s, or military surplus?
The 22s are covered in the above statements, however with surplus mil-spec it is a preservative coating over mild steel with minimal benefits.