With the coating, it would shoot the exact same. Nothing different in the handling. When I was cutting into my stainless with my 1/4 carbide with a TiN coating, I wondered how a firearm would do with the same treatment. I have used the same drill bit for four Hk's, and three Glocks, oh, and a couple 1911's. I finally got some wear on it with the stainless that I could visibly see. You gota figure, thousands of revolutions per minute, cutting into treated steels, and it held up like a champ... I don't think a gun is going to do much to the finish. I will see though.I'm halfway thinking about doing an AR like that...... Halfway...