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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Muzzle break inside dia. ?
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<blockquote data-quote="sable tireur" data-source="post: 3088879" data-attributes="member: 27307"><p>As with most technical requirements in firearms manufacturing, there are opinions galore. </p><p></p><p>Brake diameters is one of those topics which gets questioned or discussed frequently. Some argue, some discuss. There have been numerous test situations conducted but no scientific based pressure/velocity tests. Many brake manufacturers simply drill/bore a .22 caliber hole and let you resolve the debate on your own or with a gunsmith.</p><p></p><p>There is one theory put forward that states that a hole too small or close to the bullet diameter actually reduces accuracy while slightly larger holes appear to not affect accuracy at all or as much as one smaller. Who knows?</p><p></p><p>Generally speaking and please, in my opinion only, adding 0.020" a side or 0.040" overall seems to be an appropriate diameter. Be aware that the barrel bore and brake bore MUST be aligned perfectly!</p><p></p><p>However, whatever you select or produce, measure accurately and check with a single bullet BEFORE loading and shooting. I wish I had the pictures I took several years ago when someone actually shot a .30 caliber bullet through a .264" diameter brake. Woke his butt up!</p><p></p><p>Be careful, measure and check!</p><p></p><p><img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p></blockquote><p></p>
[QUOTE="sable tireur, post: 3088879, member: 27307"] As with most technical requirements in firearms manufacturing, there are opinions galore. Brake diameters is one of those topics which gets questioned or discussed frequently. Some argue, some discuss. There have been numerous test situations conducted but no scientific based pressure/velocity tests. Many brake manufacturers simply drill/bore a .22 caliber hole and let you resolve the debate on your own or with a gunsmith. There is one theory put forward that states that a hole too small or close to the bullet diameter actually reduces accuracy while slightly larger holes appear to not affect accuracy at all or as much as one smaller. Who knows? Generally speaking and please, in my opinion only, adding 0.020" a side or 0.040" overall seems to be an appropriate diameter. Be aware that the barrel bore and brake bore MUST be aligned perfectly! However, whatever you select or produce, measure accurately and check with a single bullet BEFORE loading and shooting. I wish I had the pictures I took several years ago when someone actually shot a .30 caliber bullet through a .264" diameter brake. Woke his butt up! Be careful, measure and check! :) [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Muzzle break inside dia. ?
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