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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5mm - 25cal = .007"
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<blockquote data-quote="257 Blackjack" data-source="post: 1566591" data-attributes="member: 106220"><p>We spent about 2 years combing through different bullet geometries and what resulted in what effects. In regards to attainable muzzle velocity we honed in on the exact Bearing Surface Length we felt would allow the bullets to run as fast as possible without sacrificing accuracy for the average reloader. </p><p></p><p>We knew the 131 ACE would trend on the fast side of the bullet selection, but like the BC it came out a bit ahead of our calculations. </p><p></p><p>If you can run the 117 sierra SP xxxx fps in your rifle, you can run the 131 ACE right up to that speed as well. We have seen this in a number of barrels since we break the rifles in with 117s and do comparisons this way. Signs of pressure show up at nearly the same speeds.</p><p></p><p>This is simply due to geometry differences.</p></blockquote><p></p>
[QUOTE="257 Blackjack, post: 1566591, member: 106220"] We spent about 2 years combing through different bullet geometries and what resulted in what effects. In regards to attainable muzzle velocity we honed in on the exact Bearing Surface Length we felt would allow the bullets to run as fast as possible without sacrificing accuracy for the average reloader. We knew the 131 ACE would trend on the fast side of the bullet selection, but like the BC it came out a bit ahead of our calculations. If you can run the 117 sierra SP xxxx fps in your rifle, you can run the 131 ACE right up to that speed as well. We have seen this in a number of barrels since we break the rifles in with 117s and do comparisons this way. Signs of pressure show up at nearly the same speeds. This is simply due to geometry differences. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6.5mm - 25cal = .007"
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