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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a short barrel need a faster twist?
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<blockquote data-quote="J E Custom" data-source="post: 321590" data-attributes="member: 2736"><p>I would be more inclined to believe that it was the crown or more likely when he shortened it </p><p>the harmonics changed and he should have worked up new loads.</p><p></p><p>Also by shortening the barrel he lost some velocity and should have increased the powder</p><p>charge or changed powder in order to reach the "OLD" velocity.</p><p></p><p>Lots of rifles shoot there best at just below the max pressure and velocity so if a rifle shoots</p><p>well the best thing to do is chronograph the existing load and after changing/shorting the</p><p>barrel work up new loads that match.</p><p></p><p>I learned what little I know from a master gun smith that shot nothing but bench rest and he </p><p>actually re crowned until he found the best harmonics (Shot the best). I know of one rifle that</p><p>he re crowned 11 times before he was satisfied.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 321590, member: 2736"] I would be more inclined to believe that it was the crown or more likely when he shortened it the harmonics changed and he should have worked up new loads. Also by shortening the barrel he lost some velocity and should have increased the powder charge or changed powder in order to reach the "OLD" velocity. Lots of rifles shoot there best at just below the max pressure and velocity so if a rifle shoots well the best thing to do is chronograph the existing load and after changing/shorting the barrel work up new loads that match. I learned what little I know from a master gun smith that shot nothing but bench rest and he actually re crowned until he found the best harmonics (Shot the best). I know of one rifle that he re crowned 11 times before he was satisfied. J E CUSTOM [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does a short barrel need a faster twist?
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