Bob is a genius with barrels. If I ever told y'all about what he did with a mid-18th century French double gun barrel assembly I sent to him, I don't think anyone would believe me. But hot d**m, he worked it out and I shot the darned thing repeatedly when he was done with it. A 1750-1760 era gun! THE BEST guy to deal with when it comes to weird barrel situations or barrels that need 'help.'