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Long Range Hunting & Shooting
Accuracy & Power at Long Range?
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<blockquote data-quote="Mark_in_utah" data-source="post: 9477" data-attributes="member: 1503"><p>You get diminishing returns on progressively longer barrels. Instead of picking up 250 fps, I'd expect something less, like around 100 or 150 fps improvement on a 30-06 with a really long barrel.</p><p></p><p>Big-bottle magnums pick up the largest improvement with extra-long barrels, as they can hold LOTS of slow powder that can use the entire barrel length for burning the powder. That's why you always see guys with the long barrels shooting big magnums. </p><p></p><p>In contrast, the .22LR actually sees a slower velocity when the barrel gets past around 18". The Powder is all burned up and the friction in the longer barrel starts to slow it down.</p><p></p><p>Mark in Utah</p></blockquote><p></p>
[QUOTE="Mark_in_utah, post: 9477, member: 1503"] You get diminishing returns on progressively longer barrels. Instead of picking up 250 fps, I'd expect something less, like around 100 or 150 fps improvement on a 30-06 with a really long barrel. Big-bottle magnums pick up the largest improvement with extra-long barrels, as they can hold LOTS of slow powder that can use the entire barrel length for burning the powder. That's why you always see guys with the long barrels shooting big magnums. In contrast, the .22LR actually sees a slower velocity when the barrel gets past around 18". The Powder is all burned up and the friction in the longer barrel starts to slow it down. Mark in Utah [/QUOTE]
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