Dropped my rifle off at the Gun smith shop today.(Rem 700 6x284) I've had a 1,000+ rnds down it. Hart SS 416R bbl. Smith had a bore scope,first few inches looked like a checker board with out the checkers. All my loads were full throttle loads. Smith said " Chrom Molly bbls last longer then SS barrels ? What ? Did a search and dang I found no evidence to the contrary ! I called up a Brux barrels they said " 6 of one and a half a dozen of the other. SS barrels collect less copper then chrom Molly". Plus no evidence as one to be more accurate then the other. Found a post from a another barrel maker for over 30 years saying basically same thing. Thought that was quite interesting.