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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Barrel timing
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<blockquote data-quote="quigley257" data-source="post: 3052124" data-attributes="member: 84442"><p>For the barrel nerds... Sorry, no pics of the ports inside, but here is a shot of a 24" 1/10 twist 270 Winchester, five port piezo test barrel that we made a while back. Piezo barrels require the ports to be centered in the grooves. The guy who does the porting uses a formula of twist rate and distance to ensure the ports are centered. These barrels are used in a universal receiver setup by ammo manufacturers for measuring pressures.</p><p></p><p>[ATTACH=full]550358[/ATTACH][ATTACH=full]550357[/ATTACH]</p></blockquote><p></p>
[QUOTE="quigley257, post: 3052124, member: 84442"] For the barrel nerds... Sorry, no pics of the ports inside, but here is a shot of a 24" 1/10 twist 270 Winchester, five port piezo test barrel that we made a while back. Piezo barrels require the ports to be centered in the grooves. The guy who does the porting uses a formula of twist rate and distance to ensure the ports are centered. These barrels are used in a universal receiver setup by ammo manufacturers for measuring pressures. [ATTACH type="full"]550358[/ATTACH][ATTACH type="full"]550357[/ATTACH] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
Barrel timing
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