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Rifles, Reloading, Optics, Equipment
Reloading
260 AI speed question
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<blockquote data-quote="J E Custom" data-source="post: 694722" data-attributes="member: 2736"><p>The "Regular" 260 velocity is close to Max pressure (55,000 Psi) when pushing a 140 grain bullet</p><p>at 2750 ft/sec so 2900 is a 150 ft/sec jump.</p><p></p><p>Any where in the 2800 to 2900 ft/sec is a good neighborhood, and without loading Hard or having </p><p>a 28''+ barrel it is tough.</p><p></p><p>I don't know what your velocities are but if they are not loaded to the max and are accurate I </p><p>would be happy.</p><p></p><p>More speed normally requires more case capacity when max pressures are reached.</p><p></p><p>Some barrels are a little faster than others but this difference is between 25 and 50 ft/sec</p><p>at the most .</p><p></p><p>Velocity is like gas mileage. the number is normally high. Believe only half of what you hear.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 694722, member: 2736"] The "Regular" 260 velocity is close to Max pressure (55,000 Psi) when pushing a 140 grain bullet at 2750 ft/sec so 2900 is a 150 ft/sec jump. Any where in the 2800 to 2900 ft/sec is a good neighborhood, and without loading Hard or having a 28''+ barrel it is tough. I don't know what your velocities are but if they are not loaded to the max and are accurate I would be happy. More speed normally requires more case capacity when max pressures are reached. Some barrels are a little faster than others but this difference is between 25 and 50 ft/sec at the most . Velocity is like gas mileage. the number is normally high. Believe only half of what you hear. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Reloading
260 AI speed question
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