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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel fluting post build affect accuracy?
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<blockquote data-quote="Richard338" data-source="post: 70201" data-attributes="member: 1537"><p>DS,</p><p>To work out the expansion for any size is easy.</p><p>Take .00002 multiply by the temp change (say 80C). That gives 0.0016 as the fractional expansion.</p><p>All you do now is multiply the size of the object by 0.0016, and thats how much it expands.</p><p>The nice thing is that it is unitless. If your object is 1" it expands by 0.0016 inches.</p><p>If your object is one meter, it expands by 0.0016 meters. So a 1/2 inch barrel expands by 0.0008 inches (1/2 x 0.0016)</p><p>The bore is the same in your case, so it expands the same (.2640 x 0.0016)=0.0004</p></blockquote><p></p>
[QUOTE="Richard338, post: 70201, member: 1537"] DS, To work out the expansion for any size is easy. Take .00002 multiply by the temp change (say 80C). That gives 0.0016 as the fractional expansion. All you do now is multiply the size of the object by 0.0016, and thats how much it expands. The nice thing is that it is unitless. If your object is 1" it expands by 0.0016 inches. If your object is one meter, it expands by 0.0016 meters. So a 1/2 inch barrel expands by 0.0008 inches (1/2 x 0.0016) The bore is the same in your case, so it expands the same (.2640 x 0.0016)=0.0004 [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Barrel fluting post build affect accuracy?
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