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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Extra velocity with 30" barrel
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<blockquote data-quote="Buffalobob" data-source="post: 188609" data-attributes="member: 8"><p>The numbers I see and what I expect is about 20 fps per inch of barrel from 26 to 30 inches and perhaps 15 fps per inch from 30 to 34 inches of lenght. This incorporates the idea that you are matching the bullet and powder to the barrel lenght so that you achieve maximum results. Perhaps you will get more, but if so, then just be happy with it. So with a longer barrel you probably want to be using a slower powder to make more use of the barrel. </p><p></p><p>There are point of diminishing returns where you do not get much more velocity no matter what you do.</p><p></p><p>If you go over to Dan Lilja's web site you will find his experiment and measurements with successive cutting off of a barrel.</p></blockquote><p></p>
[QUOTE="Buffalobob, post: 188609, member: 8"] The numbers I see and what I expect is about 20 fps per inch of barrel from 26 to 30 inches and perhaps 15 fps per inch from 30 to 34 inches of lenght. This incorporates the idea that you are matching the bullet and powder to the barrel lenght so that you achieve maximum results. Perhaps you will get more, but if so, then just be happy with it. So with a longer barrel you probably want to be using a slower powder to make more use of the barrel. There are point of diminishing returns where you do not get much more velocity no matter what you do. If you go over to Dan Lilja's web site you will find his experiment and measurements with successive cutting off of a barrel. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Extra velocity with 30" barrel
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