That was good stuff. I need to spend more time with this though. I bet barrel bands and step tapering were discontinued due to new info, or better barrel making, and better alloys. Some doctors early on used to suggest to patients to take up smoking to relieve anxiety. Maybe it worked, but with modern knowledge, they know this isn't the way to approach this problem at all. I am skeptical about the barrel doing the vibrating after the bullet has left the end of it. It is a fact that when I had my sporters fully receiver, and barrel bedded they shot better, tighter, and didn't need sighting in again.