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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Real difference...in barrels..
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<blockquote data-quote="MagnumManiac" data-source="post: 194431" data-attributes="member: 10755"><p>Barrel stiffness is the governing factor in accuracy.You don't see too many 'soda straw' barrels on benchrest lines for a reason.Barrel weight in heavy contours is easily managed these days by putting flutes on them.The good thing about fluting is that the barrel has the same amount of stiffness,but is lighter,and it helps cool things down a little faster by having more surface area.</p><p>The difference in accuracy comes from the fact that a stiffer barrel whips less,and by tuning your loads to have a barrel time that coincides with the 'whip' to have the bullet exit at that point in the 'whip' when it is stationary.</p><p>Light recoil or heavy recoil have no bearing on accuracy,so a no.1 contour is not going to make a difference on a 22-250 over a no.5 contour,both can be as accurate as the other.How these barrels are bedded makes a significant difference.Fore end pressure on a light barrel will distort it more,than the same amount of pressure on a heavier,stiffer barrel ,once the two heat up.</p><p>Also barrel length has no bearing on accuracy,so any length,contour and fluting can be used for whatever calibre the rifle may be.</p><p>Lastly, a light contour barrel can be finnicky to handload for,for the reasons I've already stated above,but that said,there is no reason for a light barrel to be anymore finnicky than a heavy barrel.All barrels can be finnicky if they have an unforeseen tight spot or damage internally,because this will change barrel time on every consecutive shot,as more fouling builds on that spot.</p><p>It is not an exact science,many have tried to come up with the answer "why some barrels shoot better than others'.</p><p>Hope this helps.</p><p><strong>MagnumManiac</strong></p><p>gun)</p></blockquote><p></p>
[QUOTE="MagnumManiac, post: 194431, member: 10755"] Barrel stiffness is the governing factor in accuracy.You don't see too many 'soda straw' barrels on benchrest lines for a reason.Barrel weight in heavy contours is easily managed these days by putting flutes on them.The good thing about fluting is that the barrel has the same amount of stiffness,but is lighter,and it helps cool things down a little faster by having more surface area. The difference in accuracy comes from the fact that a stiffer barrel whips less,and by tuning your loads to have a barrel time that coincides with the 'whip' to have the bullet exit at that point in the 'whip' when it is stationary. Light recoil or heavy recoil have no bearing on accuracy,so a no.1 contour is not going to make a difference on a 22-250 over a no.5 contour,both can be as accurate as the other.How these barrels are bedded makes a significant difference.Fore end pressure on a light barrel will distort it more,than the same amount of pressure on a heavier,stiffer barrel ,once the two heat up. Also barrel length has no bearing on accuracy,so any length,contour and fluting can be used for whatever calibre the rifle may be. Lastly, a light contour barrel can be finnicky to handload for,for the reasons I've already stated above,but that said,there is no reason for a light barrel to be anymore finnicky than a heavy barrel.All barrels can be finnicky if they have an unforeseen tight spot or damage internally,because this will change barrel time on every consecutive shot,as more fouling builds on that spot. It is not an exact science,many have tried to come up with the answer "why some barrels shoot better than others'. Hope this helps. [B]MagnumManiac[/B] gun) [/QUOTE]
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Real difference...in barrels..
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