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Long Range Hunting & Shooting
barrel flex
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<blockquote data-quote="J E Custom" data-source="post: 1082865" data-attributes="member: 2736"><p>Barrel contours and discontinuities from the manufacture have a huge effect on barrel flex and also there shape (Contour, Straight taper, fluted and carbon wrapped). the one thing that I think all smiths would have to agree on is that the barrel shape/contour has to be uniform around the bore so harmonics are predictable and consistent. </p><p></p><p>Any attachment to the barrel can change this by disrupting the harmonics and making them uneven/inconsistent like a vented rib, sling swivel or a sight that is attached to the barrel on one </p><p>side. </p><p></p><p>A muzzle brake that is well balanced and installed correctly should dampen some of the vibrations/</p><p>harmonics and could change the poi. (But not necessarily for the worst) Most of the time there is a good chance that the group size will improve even if the poi has changed.</p><p></p><p>Stocks have a big role in managing harmonics. some stock materials resonate sound and some actually dampen, If bedded correctly the bedding can transfer the vibrations to the stock materials</p><p>for absorption reducing the barrel harmonics.</p><p></p><p>A barrel that flexes, can be very accurate as long as it is consistent, if the right load is found, but when you change that load accuracy and consistency can go out the window.</p><p></p><p>Accuracy is consistency, All things related to a weapon must be addressed in order to be consistently</p><p>accurate. This is where the re-loader has an advantage. He can tailor his load to get the most out of his weapon system.</p><p></p><p>J E CUSTOM</p></blockquote><p></p>
[QUOTE="J E Custom, post: 1082865, member: 2736"] Barrel contours and discontinuities from the manufacture have a huge effect on barrel flex and also there shape (Contour, Straight taper, fluted and carbon wrapped). the one thing that I think all smiths would have to agree on is that the barrel shape/contour has to be uniform around the bore so harmonics are predictable and consistent. Any attachment to the barrel can change this by disrupting the harmonics and making them uneven/inconsistent like a vented rib, sling swivel or a sight that is attached to the barrel on one side. A muzzle brake that is well balanced and installed correctly should dampen some of the vibrations/ harmonics and could change the poi. (But not necessarily for the worst) Most of the time there is a good chance that the group size will improve even if the poi has changed. Stocks have a big role in managing harmonics. some stock materials resonate sound and some actually dampen, If bedded correctly the bedding can transfer the vibrations to the stock materials for absorption reducing the barrel harmonics. A barrel that flexes, can be very accurate as long as it is consistent, if the right load is found, but when you change that load accuracy and consistency can go out the window. Accuracy is consistency, All things related to a weapon must be addressed in order to be consistently accurate. This is where the re-loader has an advantage. He can tailor his load to get the most out of his weapon system. J E CUSTOM [/QUOTE]
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