porting vs brake

  1. MtnMann

    300WBY: Replace Muzzle Ports with Brake?

    My father has a Mark V with a 26” barrel chambered in 300 Weatherby Magnum that had barreling porting done to it a long time ago. I was wondering since we are probably already losing some velocity with the barrel being ported would it be better to cut the barrel back 1.5”-1.75” (just enough to...