OK, I know this thread is about scientistic, controlled barrel bending, but I have a personal story of a forked tree bend that worked. I began serious shooting at 11 or 12 years of age with a Remington 20ga Model 31. My mother had taken a fall in a middle GA red clay gully with the gun and the barrel was noticeably bent to the left.
I figured out where the gun shot and learned to adjust. I'd hold 2" to the right to shoot a dove off a limb. I didn't have to lead anything flying right to left but had to double my lead for left to right shots.
One day I got tired of all that and put the barrel in the notch of a forked dogwood tree in the front yard and bent it back straight. Problem solved!...Geo
