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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Bartlein barrel contour for 300 PRC?
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<blockquote data-quote="sable tireur" data-source="post: 1764111" data-attributes="member: 27307"><p>If you look at the contour dimensions on the Bartlein website you can get an idea of why they recommend their #4 contour. The use of suppressors and muzzle brakes has gained so much momentum that most folks choose one or both for their builds.</p><p></p><p>If the Bartlein 3b = 0.700" at the muzzle then you want a 5/8"-24 muzzle brake, there isn't enough meat left on the barrel to seat the brake or can. (.700 - .625 = 0.75/2 = 0.0375"</p><p></p><p>Bartlein #4 = 0.750" adding another 0.025" per side to the formula for threading the 5/8"-24 muzzle brake.</p><p></p><p>Safety First!<img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite8" alt=":D" title="Big Grin :D" loading="lazy" data-shortname=":D" /></p></blockquote><p></p>
[QUOTE="sable tireur, post: 1764111, member: 27307"] If you look at the contour dimensions on the Bartlein website you can get an idea of why they recommend their #4 contour. The use of suppressors and muzzle brakes has gained so much momentum that most folks choose one or both for their builds. If the Bartlein 3b = 0.700" at the muzzle then you want a 5/8"-24 muzzle brake, there isn't enough meat left on the barrel to seat the brake or can. (.700 - .625 = 0.75/2 = 0.0375" Bartlein #4 = 0.750" adding another 0.025" per side to the formula for threading the 5/8"-24 muzzle brake. Safety First!:D [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Bartlein barrel contour for 300 PRC?
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