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Rifles, Reloading, Optics, Equipment
Gunsmithing
Muzzle break threading 300 win mag
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<blockquote data-quote="Hired Gun" data-source="post: 1312857" data-attributes="member: 1290"><p>Fourth paragraph of my previous post. </p><p> </p><p>Here is a link to the Kimber brake. Terminator also makes the T-1 brake for .308 with 7/16-28 threads. On their page they have a video of the T-1 in use on a 300RUM. </p><p> </p><p> <u><a href="http://store.kimberamerica.com/adirondack-308-muzzle-break" target="_blank">Adirondack Muzzle Brake - .308 Win. - Accessories - Sporter Rifles - Rifles</a></u></p><p> </p><p><u><u><u><u><u><u><a href="http://terminatorproducts.co.nz/t1-brake/" target="_blank">T1 Brake - Terminator Products</a></u></u></u></u></u></u></p><p></p><p> </p><p>Rifles Inc does it regularly on their ultra light 300 RUM rifles. If I beat the brush I'm sure I could find more than a few more ultra light rifle builders that use 7/16-28 over .308. </p><p> </p><p>I draw the line there. I will never put a 7/16 thread brake on a .308 bore. The only reason I brought it up was if they can do 7/16-28 over a .308 then a 1/2-28 should never be a problem. I even found posts from some guy named Dave Tooley stating he installs 1/2-28 in .308 rifles regularly. I don't know him but I have used some stocks that are named after him. He mentioned that even if it does fail there is no danger to the shooter. He stated that he has seen all sort of brake failures from botched jobs and at worst the brake flies harmlessly down range. </p><p> </p><p>I believe a lot of it has to do with who "fit" the threads verses a guy that just cuts threads and if they need to use a thread relief. Ours are compared to micrometer spindle threads. They are not .001 deeper than needed and we never use a thread relief on outside threads.</p><p> </p><p>The number of 1/2-28 over .308 bore we do grows weekly. I know I'm not the only one. Ask any major brake maker. Doing this full time as my sole occupation for over 8 years now and not one comeback. My mentors were famous long before the internet and they have no issues with doing it either. Additionally, universally everyone has commented the rifles shoot dramatically better after our brake and crown job. </p><p> </p><p>Now that I think of it you are the only one I remember saying it is unsafe or saying you have seen failures. I would like to hear more about those.</p></blockquote><p></p>
[QUOTE="Hired Gun, post: 1312857, member: 1290"] Fourth paragraph of my previous post. Here is a link to the Kimber brake. Terminator also makes the T-1 brake for .308 with 7/16-28 threads. On their page they have a video of the T-1 in use on a 300RUM. [U][URL="http://store.kimberamerica.com/adirondack-308-muzzle-break"]Adirondack Muzzle Brake - .308 Win. - Accessories - Sporter Rifles - Rifles[/URL][/U] [U][U][U][U][U][U][URL="http://terminatorproducts.co.nz/t1-brake/"]T1 Brake - Terminator Products[/URL][/U][/U][/U][/U][/U][/U] Rifles Inc does it regularly on their ultra light 300 RUM rifles. If I beat the brush I'm sure I could find more than a few more ultra light rifle builders that use 7/16-28 over .308. I draw the line there. I will never put a 7/16 thread brake on a .308 bore. The only reason I brought it up was if they can do 7/16-28 over a .308 then a 1/2-28 should never be a problem. I even found posts from some guy named Dave Tooley stating he installs 1/2-28 in .308 rifles regularly. I don't know him but I have used some stocks that are named after him. He mentioned that even if it does fail there is no danger to the shooter. He stated that he has seen all sort of brake failures from botched jobs and at worst the brake flies harmlessly down range. I believe a lot of it has to do with who "fit" the threads verses a guy that just cuts threads and if they need to use a thread relief. Ours are compared to micrometer spindle threads. They are not .001 deeper than needed and we never use a thread relief on outside threads. The number of 1/2-28 over .308 bore we do grows weekly. I know I'm not the only one. Ask any major brake maker. Doing this full time as my sole occupation for over 8 years now and not one comeback. My mentors were famous long before the internet and they have no issues with doing it either. Additionally, universally everyone has commented the rifles shoot dramatically better after our brake and crown job. Now that I think of it you are the only one I remember saying it is unsafe or saying you have seen failures. I would like to hear more about those. [/QUOTE]
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