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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
1:8 or 1:9...
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<blockquote data-quote="Kevin Thomas" data-source="post: 715165" data-attributes="member: 15748"><p>The problems beyond these with the 1x9" remains one of twist, not mag length. So long as it's got a 7 caliber ogive or less, it will work as "mag length" at 2.260" The problem with the 75s-77s is that they need the faster 1x8" twist. I routinely use 77s for my Across the Course shooting, switching to 80s or 82s for the 600 yard stages, Since the 600 yard stage is designated as "slow fire", the rounds must be single loaded; the rules don't allow them to be fed from the mag. As a result, the heavier bullets intended for these strings generally use a 12-15 caliber ogive, and are usually seated out to around 2.450" or more. Here, the inability to function trhough a mag isn't a problem at all, and is what allowed the more extreme designs to come to be.</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 715165, member: 15748"] The problems beyond these with the 1x9" remains one of twist, not mag length. So long as it's got a 7 caliber ogive or less, it will work as "mag length" at 2.260" The problem with the 75s-77s is that they need the faster 1x8" twist. I routinely use 77s for my Across the Course shooting, switching to 80s or 82s for the 600 yard stages, Since the 600 yard stage is designated as "slow fire", the rounds must be single loaded; the rules don't allow them to be fed from the mag. As a result, the heavier bullets intended for these strings generally use a 12-15 caliber ogive, and are usually seated out to around 2.450" or more. Here, the inability to function trhough a mag isn't a problem at all, and is what allowed the more extreme designs to come to be. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
1:8 or 1:9...
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