I had my barrel threaded at a machine shop and installed a Fabarm breaks (from The shooting Edge in Calgary). I believe their design is suitable for breaching, but I have never done any breaching with a Fabarm, in fact I have never even shot a Fabarm. I thought the break might reduce recoil and muzzle climb. If there is a difference, I can't notice it; perhaps someone with more experience who shoots shotguns more regularly than I do might notice a difference. If nothing else, it still has a certain psychological intimidation factor.
Anyone use a Fabarm for breaching?
I too would like to pick up some door breaching rounds if anyone knows where they can be purchaced.