Years ago Trap shooter often bent their barrels to change POI. Watched one fellow do it at the club and go test it. Back for a little more adjustment and test again. Not very scientific but he shot it well.
I had a A5 which I lent to a fellow who fell while carrying it and he bent the barrel. I re-bent it back by slamming it across a bag of shot several times. It went back almost perfectly. It took several attempt get it right but when finished it was as good as new. I lent it to him again without worry. He had been wounded in Viet Nam and his balance was always iffy. A booby trap exploded right next to his radioman, killing the radioman and shearing most of the top of his head off. Miracle that he lived at all. If he ask for it, and I had it, I gave it to him with not hesitation or questions asked. He was a good man and one who had a short and difficult life like a lot of others who severed.