308forlife Posted March 5, 2012 Report Share Posted March 5, 2012 Anyone who has a LR-308B with the 18" bull barrel I really need to know the diameter of the barrel at the muzzle. I have a LR-308B upper on the way and have a local machinist working on a muzzle brake for me. Since i dont have the barrel yet in oreder to proceed I really need to know the diameter of the barrel at the muzzle. The spec on it says .936 at the gas block but i want to double check what it is at the muzzle since most barrels have a slight taper. Anyone who could grab some calipers and measure their LR-308B would be greatly appreciated. Thanks Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted March 5, 2012 Report Share Posted March 5, 2012 welcome to the forum and very soon to follow… poverty ;D Quote Link to comment Share on other sites More sharing options...
308forlife Posted March 5, 2012 Author Report Share Posted March 5, 2012 I quickly am realizing that poverty comment ha. There are worse things I could spend money on. Quote Link to comment Share on other sites More sharing options...
edgecrusher Posted March 5, 2012 Report Share Posted March 5, 2012 true that. Quote Link to comment Share on other sites More sharing options...
392heminut Posted March 5, 2012 Report Share Posted March 5, 2012 Mine is .920 Quote Link to comment Share on other sites More sharing options...
308forlife Posted March 5, 2012 Author Report Share Posted March 5, 2012 Thank you so much 392heminut, That is what I was thinking it would be...seems as though the industry "standard" for the most part is .730" muzzle for barrels with a .750" gas block and .920" for .936" gas blocks. I suppose this is to make it easier to slide that gas block all the way on without getting a bunch of scratches on the barrel. Appreciate the help. Quote Link to comment Share on other sites More sharing options...
392heminut Posted March 5, 2012 Report Share Posted March 5, 2012 Glad to help! <thumbsup> Quote Link to comment Share on other sites More sharing options...
survivalshop Posted March 7, 2012 Report Share Posted March 7, 2012 I assume you are going for a one piece look . like mine from PRI , that I had them custom cut .I think it looks better , than a step down at the attachment point. Quote Link to comment Share on other sites More sharing options...
darb Posted January 23, 2014 Report Share Posted January 23, 2014 Anyone who has a LR-308B with the 18" bull barrel I really need to know the diameter of the barrel at the muzzle. I have a LR-308B upper on the way and have a local machinist working on a muzzle brake for me. Since i dont have the barrel yet in oreder to proceed I really need to know the diameter of the barrel at the muzzle. The spec on it says .936 at the gas block but i want to double check what it is at the muzzle since most barrels have a slight taper. Anyone who could grab some calipers and measure their LR-308B would be greatly appreciated. Thanks I have a 24" ss bull barrel and it is .936 also Quote Link to comment Share on other sites More sharing options...
392heminut Posted January 23, 2014 Report Share Posted January 23, 2014 This thread is almost two years old, and the OP hasn't posted anything since this thread. I doubt that he's been back since he got the answer he was looking for. Quote Link to comment Share on other sites More sharing options...
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