do not understand how that would make it shoot better unless the rifling was gouged and the crown beaten with a hammer. I dont think you did that.
I would think if a guy thinks his barrel is shot out is to have a smith set it back some by cutting a new chamber and getting rid of the burnt throat.
That Wilson barrel in question, was originally just a recessed straight cut.
With a 10 power lupe you could see the crown edge was no longer sharp
but also seeing what looked like fine bead blasting into the muzzle. Bore
scope showed it better, and thus the decision to cut and re crown. Simple
do on my end being a retired tool maker, with lathe and Bridgeport set up
in my sons shop. The Wylde chamber itself still looked decent in my
opinion and the barrel showed no fire cracking to worry about. I do need
to get a reamer on the shelf, but it shoots good as it is......A little side note.
this particuler rifle has seen nothing but IMI Mod-1 77grain Sierras. Also,
if you don't have a bore scope with your tools.....Teslong is your friend.