tuner muzzle brake

  1. Jack300WSM

    Recoil lug bedding and Cortina Brake

    I’ve been tweaking my CA Ridgeline for awhile now. It’s a 300wsm. Settled on 61.0g of H4350 under 185 Berger H VLDs seated .002” off lands. With this load I was getting around 3/4” groups with stock rifle and Eric Cortina tuner brake installed. I went through Eric’s setup routine but could never...
  2. R

    Self timing barrel tuner muzzle brake

    This is the self timing barrel tuner muzzle brake from without warning, the tmb. How many people are playing with tuners like this on their precision rifles?