Forums › Forums › Technical Articles › T3X CTR Stainless 308 muzzle diameter for muzzle break › Re: Re: T3X CTR Stainless 308 muzzle diameter for muzzle break Larkin Moderator July 6, 2016 at 3:57 am 296 Bullseyes Neither, it's metric…… Not sure of the size….. Paul It doesn't matter which it is if you just comparing diameters
