You mean like Mag-na-porting?
I'm new to the forum but not to handguns.
I've been looking for a source of muzzle brakes for my hand cannon. The Encore with 15" barrels in 460 S&W and 308 Win have what can be called "noticeable" recoil.
I'm looking for a reputable company that can freebore the end of the barrel and cut in muzzle brakes without extending the length.
Do any of you guys have experience with these things?