Glad you like it, I have it on 2 rifles at present the Ruger No-1 in 450NE and a lit weight Wby-300, and it sure does help,, and to me doesn't appear to be as loud as a normal brake.

First chance I get I will shoot my 2 Blaser 300 mag bbls side by side. That will be the true test, but so far I think I like the Magna Port bbl.