I'm thinking of sending the barrel to Rob Roberts to have it EDM ported. They claim to reduce jump and also recoil by 15%. Anybody done this? This rifle is for an 11yo with a 3yo little brother. It's going to go through several kids. I don't mind throwing a few bucks at it if it's worth it.
I wouldn't, I'd just thread it for a muzzle brake/suppressor if you can. Probably not much of a need with young kids to shoot bullets over 130 grains. Brakes can cause flinching just as fast as recoil.