Originally Posted by Jinx-)
I thought major difference between factory vs custom, is that custom are polished, bore lapped to remove those imperfections, so theoretically JB should perform some of the polishing...
Right on: I know someone that for years figured his Heart barrels had something wrong with them if he wasn't shearing lots of copper off the bullets the first 50 rounds or so.
Personally I have been shooting Benchmark barrels for some years now and to date I have yet to find copper in the bore. In speaking with Ron @ Benchmark I think they feel that with their system the barrel being glass smooth is pretty much broke in when the consumer gets it. Put a Nice hard Nitride finish on that bore and one is going to be very hard pressed to shear copper.
However this is about Jim's research on factory barrels and personally If I spend money on a new gun the gun/barrel better not require my attention regardless of who's factory it came from. I did not make the purchase to spend days wondering or using special tools or lapping compounds to fix something that should have been right from the factory.