I was considering this muzzle brake for a 338 Lapua Mag (I'm only waiting on the barrel to come in from shilen) MidwayUSA - JP Enterprises Recoil Eliminator Muzzle Brake 5/8" x 28 Thread AR-15 Matte I understand that for accuracy the hole through the brake should be .020" larger than bullet diamater. If you look at the pic of this brake it's got a large hole and then a smaller one that could be made .020" larger than bullet diamater. My question is will the larger hole be a problem for accuracy? I want an effective brake, but I'm unwilling to give up any accuracy for it. I understand that this brake is one of the most effective in cuttting down recoil. I've used search and found lots of good info here. I've never had a rifle with a brake on it before as I've always shot reasonable recoiling calibers (largest I've owned was 7mm mag). I really liked the Brake test thread with the videos, I was wondering if there's a link I could go to to find the price and other info on this brake. It sounds like it's made by a member here.