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Rifles, Reloading, Optics, Equipment
Gunsmithing
Muzzle brake timing?
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<blockquote data-quote="Rustystud" data-source="post: 393241" data-attributes="member: 9964"><p>HiredGun:</p><p> </p><p>There is a direct relationship between threads per inch and their pitch. One of the greatest resources for every machinist and gun smith is the MACHINIST HANDBOOK.(you can buy a used one off e-bay or one of the book websites for a few dollars) If you are doing modern CNC a newer addition might be in order. It is the best resource out there. It has the formulas to use with every type of screw pitch. Doing it by the numbers will save you many inches of barrel and even more hours of frustration. I was tought trig but the matn teacher never cared enought to mak it useful in the shop. I went back and took algebra and trig again 40 years after graduating from college. The trig teacher at the community college made trig work in usefule applications.</p><p> </p><p>After installing your action and head spacing it make a tick mark on the bottom as a refrence point. I do this with a scribe so it can't be wiped off. Mark 90 degrees on both sides with a sharpie marker. Now you have some refrences to do your brake alignmnet. Mark the bottom of the muzzle with a sharpie when you have he muzzle done.</p><p> </p><p>If your muzzle brake threads are 32 tpi one revolution = 1/32 of an inch. Get a tape rule marked in 1/16ths or 1/32nds. Mark your muzzle brake with a begining index mark on the bottom. Make sharpie tick marks on the brake. Count the tick marks you need to go. Turn the shoulder or barke back accordingly. You may want to cut it just shy of the measured amount and lap it into perfect alignment.</p><p> </p><p>Nat Lambeth</p></blockquote><p></p>
[QUOTE="Rustystud, post: 393241, member: 9964"] HiredGun: There is a direct relationship between threads per inch and their pitch. One of the greatest resources for every machinist and gun smith is the MACHINIST HANDBOOK.(you can buy a used one off e-bay or one of the book websites for a few dollars) If you are doing modern CNC a newer addition might be in order. It is the best resource out there. It has the formulas to use with every type of screw pitch. Doing it by the numbers will save you many inches of barrel and even more hours of frustration. I was tought trig but the matn teacher never cared enought to mak it useful in the shop. I went back and took algebra and trig again 40 years after graduating from college. The trig teacher at the community college made trig work in usefule applications. After installing your action and head spacing it make a tick mark on the bottom as a refrence point. I do this with a scribe so it can't be wiped off. Mark 90 degrees on both sides with a sharpie marker. Now you have some refrences to do your brake alignmnet. Mark the bottom of the muzzle with a sharpie when you have he muzzle done. If your muzzle brake threads are 32 tpi one revolution = 1/32 of an inch. Get a tape rule marked in 1/16ths or 1/32nds. Mark your muzzle brake with a begining index mark on the bottom. Make sharpie tick marks on the brake. Count the tick marks you need to go. Turn the shoulder or barke back accordingly. You may want to cut it just shy of the measured amount and lap it into perfect alignment. Nat Lambeth [/QUOTE]
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Muzzle brake timing?
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