Toolndie7 Posted May 18, 2016 Report Share Posted May 18, 2016 (edited) Been reading on this subject and thought this article was interesting. Very well explained. http://www.ozfclass.com/articles/1/psm_2005_03.html this one as well http://www.varmintal.com/atune.htm Edited May 18, 2016 by Toolndie7 Quote Link to comment Share on other sites More sharing options...
survivalshop Posted May 18, 2016 Report Share Posted May 18, 2016 Interesting stuff, adj. weight for the end of the Barrel ? I would guess ,Brakes or Compensators do somewhat the same thing by directing Muzzle Blast , instead of weight , just not as tunable . Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted May 19, 2016 Report Share Posted May 19, 2016 Browning did this on their bolt actions 20+ years ago! It worked but most people were turned off by the big thing on the end of the bbl. They added them to some Win Mod 70's along the way.When they owned Winchester. Hard to find one now. Respectfully Terry Quote Link to comment Share on other sites More sharing options...
Sisco Posted May 19, 2016 Report Share Posted May 19, 2016 There has been speculation in the past that a shorter "bull" barrel could be conceivably more accurate than a longer standard barrel becuse of the harmonics issue. Less flex, etc.. Once you get out to long distances, the longer barrel might have the advantage in keeping the projectile transonic longer and thus more accurate. I haven't seen definitive data, but it is interesting. Quote Link to comment Share on other sites More sharing options...
TangoKiloKilo Posted May 19, 2016 Report Share Posted May 19, 2016 Yes , Browning did develop an adjustable muzzle break called the B.O.S.S.. The story I read years ago was Browning was having issues with some BAR's that wouldn't group, when someone decided to loop some barrel off and got good results, there theory was barrel harmonics was the ticket. Anschulz had done testing also an found that a .22 lr barrel optimum length was 16 inches. They produced rifles with longer barrels, but were actually just sight extension for increase sight radius. Would be interesting to see if an adjustable break would help on shorter barrels. Quote Link to comment Share on other sites More sharing options...
ironhorse18 Posted May 29, 2016 Report Share Posted May 29, 2016 I am in the process of putting together an AR 10 in .308 at this time. Living on just my retirement income, it's going to take some time but that's OK. I am very interested in installing a tunable muzzle device. Anyone have a suggestion as to what manufacture to purchase? All suggestions appreciated. Thank you, "old vet" Quote Link to comment Share on other sites More sharing options...
shepp Posted May 29, 2016 Report Share Posted May 29, 2016 3 minutes ago, ironhorse18 said: I am in the process of putting together an AR 10 in .308 at this time. Living on just my retirement income, it's going to take some time but that's OK. I am very interested in installing a tunable muzzle device. Anyone have a suggestion as to what manufacture to purchase? All suggestions appreciated. Thank you, "old vet" Welcome to the forum feel free to post up in the intro area Quote Link to comment Share on other sites More sharing options...
Tripledeuce Posted May 30, 2016 Report Share Posted May 30, 2016 To start with lets rember that the BOSS system was used in the 70's and 80's. Expeant accuracy then and now are two different things. Then if you had a sporter rifle that would reliably shoot an 1" group, you had quite a good rifle! Now we expect that. The Boss system worked by screwing in in or out , like a nut on a bolt. Browning held a nation wide contest to find the most accrate Boss equiped rifle. Handloading and the Boss the only things that you were allowed to change. Rifles had to be stock Brownings. BBL's were from carbine length to 26" magnums. The boss worked on all of them. Lots of rifles shot under an inch, one under 3/4 regularly. I don't rember what the winner really was, after all, that was the most part of 40 years ago.LOL! Would they work, today? with all the advantages we now have? Heck if I know. Respectfully Terry Quote Link to comment Share on other sites More sharing options...
mrmackc Posted January 23, 2017 Report Share Posted January 23, 2017 One of my engineer shooting buddies in Pampa was an engineer for Cabot , Cabot had a metal foundry and manufactored tubes for the new 175 MM howitzer for the Army back during the 1970s and he was involved in improving accuracy for the tubes. He had a lot of information on barrel harmonics and we did some work on the stocks of our bolt action target rifles by moving nodes trying to improve accuracy. We ended up deciding a free floated barrel was best, because a wooden stock changed pressure on the barrel when moisture caused swelling in the wood. we also read about the work Browning was doing. Quote Link to comment Share on other sites More sharing options...
mrmackc Posted January 23, 2017 Report Share Posted January 23, 2017 A side story that is funny about this friend was he was a avid photographer along with being a gun guru. He went deer hunting in Colorado and before he went bought a Winchester Model 70 in .270 from me, it was a high dollar factory engraved piece and I mounted a Leopold scope on it. While he was hunting without a guide he decided to do some photography and hung the rifle in a tree did his picture taking and couldn't remember where he left his rifle, he and his buddies hunted for it for three days and never found it. Some lucky hunter either found it or it may still be hanging on that tree. It was over a $1500 rifle even in 1974. Quote Link to comment Share on other sites More sharing options...
sketch Posted January 23, 2017 Report Share Posted January 23, 2017 Mack ask a leo to run the numbers if you have them? Quote Link to comment Share on other sites More sharing options...
MikedaddyH Posted January 23, 2017 Report Share Posted January 23, 2017 46 minutes ago, sketch said: Mack ask a leo to run the numbers if you have them? Quote Link to comment Share on other sites More sharing options...
ironhorse18 Posted January 23, 2017 Report Share Posted January 23, 2017 I have the .308 finished, and ashamed to say I have yet to put a pill down the barrel. I mounted a Vortex PST FFV on the top. 1 / 11 twist, hope to shoot Palma's. If they don't fly good I'll try something else. Point is I'll make her shoot. I did a lot of fitting etc., it seams tight. 2.8 lb trigger I did myself with a home made adjusting screw and a bunch of honing. I made a jig to make the screws on the lathe. Been spending hours and hours on getting my machine shop together. Hoping to get some decent weather to get out to the range soon. Quote Link to comment Share on other sites More sharing options...
Mark Wooley Posted November 25, 2022 Report Share Posted November 25, 2022 I'm building a ar10 .308, 13.5" SBR. It will not be used in any competition, of course I want it to be as accurate as possible. I've looked at every video and article I can find. It seems like every barrel is 18"-26" long. Here is my ? Are tuner/tuner muselebrakes effective on a 13.5" (3/4") diameter barrels. Quote Link to comment Share on other sites More sharing options...
Mark Wooley Posted November 25, 2022 Report Share Posted November 25, 2022 Yes I have a 3 1/4" brake to get me to the legal rifle length...Mark Quote Link to comment Share on other sites More sharing options...
shooterrex Posted November 25, 2022 Report Share Posted November 25, 2022 So are you building a SBR or a rifle? I have a 12.5" barrel pistol and a 12.5" rifle with a 4" muzzle brake. Both shoot pretty well. Quote Link to comment Share on other sites More sharing options...
Rsquared Posted November 27, 2022 Report Share Posted November 27, 2022 Same here. My 12" AR-10 SBR has an AAC brakeout comp on it, and she shoots pretty good. Quote Link to comment Share on other sites More sharing options...
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