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Hunting
Long Range Hunting & Shooting
Superformance in a .308?
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<blockquote data-quote="Petey308" data-source="post: 2565868" data-attributes="member: 106845"><p>First off, that powder is not what Hornady uses in their Superformance ammo. They use a blend of a fast burning powder and a slow burning. </p><p></p><p>Superformance powder is going to be too slow burning for most loads with a 308. You just won't get very good speeds before maxing out on case capacity. </p><p></p><p>The powders in the black boxes are the ones that tend to work best in the 308. Superformance is pointed out with the red arrow, and you can see it's well outside the ideal burn rate. </p><p></p><p>IMR 4166, Varget, RL15.5, RL-16, etc are the best in regards to temp stability and most bullet weights. IMR 8208 is good for lighter bullets. </p><p></p><p>[ATTACH=full]376154[/ATTACH]</p></blockquote><p></p>
[QUOTE="Petey308, post: 2565868, member: 106845"] First off, that powder is not what Hornady uses in their Superformance ammo. They use a blend of a fast burning powder and a slow burning. Superformance powder is going to be too slow burning for most loads with a 308. You just won’t get very good speeds before maxing out on case capacity. The powders in the black boxes are the ones that tend to work best in the 308. Superformance is pointed out with the red arrow, and you can see it’s well outside the ideal burn rate. IMR 4166, Varget, RL15.5, RL-16, etc are the best in regards to temp stability and most bullet weights. IMR 8208 is good for lighter bullets. [ATTACH type="full"]376154[/ATTACH] [/QUOTE]
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Superformance in a .308?
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