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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mitigating Barrel Whip and Harmonics
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<blockquote data-quote="PNWdude67" data-source="post: 1765920" data-attributes="member: 110615"><p>As far as "tuning" barrel harmonics with the limb saver ring .... there have been some videos showing it does affect shot groups.... negatively ... there may be something to it for a specific load and the closer it is to the receiver the better it seemed to work. Rex Tiber does the best job of explaining the myths behind fluting...and he concludes it does not stiffen or help in any way with "barrel whip" compared to a smooth barrel of the same weight and length. I am a hunter who became a field match shooter to improve my rifleman mechanics and skill. We use heavy contour barrels and carbon fiber barrels for matches with gun weight restriction..my "test" that is not scientific but gives me confidence in the light weight carbon fiber barrels was: I recently had two match grade 7 mm M24 contour barrels chambered identically that were as accurate as one could dream of out to mile. I decided to have them carbon fiber wrapped by OMRC... they had 2.75 pounds of metal turned off them and shortened from 27.5" to 24"..... the shortening did cause about 75 FPS loss in velocity as expected. The accuracy to my pleasant surprise was absolutely maintained and they do not "walk" on 3-5 shot strings. In my opinion the diameter (that Rex talks about) of the carbon fiber wrap material maintained the integrity that the diameter of the metal removed did (if not increased)and the stiffness. So going forward my "less heavy" hunting rigs will sport large diameter carbon fiber wrapped barrels. As far as barrel whip and harmonics ... that's where load development comes into play and will always be the key to finding the most consistent load and understanding how your rifle system performs.</p></blockquote><p></p>
[QUOTE="PNWdude67, post: 1765920, member: 110615"] As far as “tuning” barrel harmonics with the limb saver ring .... there have been some videos showing it does affect shot groups.... negatively ... there may be something to it for a specific load and the closer it is to the receiver the better it seemed to work. Rex Tiber does the best job of explaining the myths behind fluting...and he concludes it does not stiffen or help in any way with “barrel whip” compared to a smooth barrel of the same weight and length. I am a hunter who became a field match shooter to improve my rifleman mechanics and skill. We use heavy contour barrels and carbon fiber barrels for matches with gun weight restriction..my “test” that is not scientific but gives me confidence in the light weight carbon fiber barrels was: I recently had two match grade 7 mm M24 contour barrels chambered identically that were as accurate as one could dream of out to mile. I decided to have them carbon fiber wrapped by OMRC... they had 2.75 pounds of metal turned off them and shortened from 27.5” to 24”..... the shortening did cause about 75 FPS loss in velocity as expected. The accuracy to my pleasant surprise was absolutely maintained and they do not “walk” on 3-5 shot strings. In my opinion the diameter (that Rex talks about) of the carbon fiber wrap material maintained the integrity that the diameter of the metal removed did (if not increased)and the stiffness. So going forward my “less heavy” hunting rigs will sport large diameter carbon fiber wrapped barrels. As far as barrel whip and harmonics ... that’s where load development comes into play and will always be the key to finding the most consistent load and understanding how your rifle system performs. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mitigating Barrel Whip and Harmonics
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