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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mitigating Barrel Whip and Harmonics
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<blockquote data-quote="Timnterra" data-source="post: 1765291" data-attributes="member: 55944"><p>As far as barrel harmonics go shorter = stiffer, heavier profile = stiffer. For fluting the fluted barrel will have the same rigidity as a a barrel of same diameter with slightly less weight. This means that you might be able to run a fluted #4 barrel with #4 rigidity at the weight of a #3 barrel, assuming the flutes removed the same amount of weight that the lighter profile has. Fluting will not, however, increase rigidity. So the #4 will still be a #4 if fluted it is not going to be as stiff as a #5. There was a post on here several months back about the difference carbon wrapping made on barrel stiffness. The gunsmith hung a weight from the muzzle of several barrels of different profiles and noted the deflection with a dial indicator. His findings were very interesting. He found that a carbon wrapped barrel deflected the same as a steel barrel of the same weight. My take a away is that carbon fiber is not as stiff as the mfgs. Want us to believe and it really doesn't improve barrel stiffness. I will try to find that thread and post it below. </p><p></p><p>This is sort of related but not going to help you in the search for a light weight rifle, but there is a company doing some amazing things to "structure" barrels to almost completely deaden the harmonic resonance. Very interesting stuff.</p><p>[MEDIA=youtube]C-7LKQYtU48[/MEDIA]</p></blockquote><p></p>
[QUOTE="Timnterra, post: 1765291, member: 55944"] As far as barrel harmonics go shorter = stiffer, heavier profile = stiffer. For fluting the fluted barrel will have the same rigidity as a a barrel of same diameter with slightly less weight. This means that you might be able to run a fluted #4 barrel with #4 rigidity at the weight of a #3 barrel, assuming the flutes removed the same amount of weight that the lighter profile has. Fluting will not, however, increase rigidity. So the #4 will still be a #4 if fluted it is not going to be as stiff as a #5. There was a post on here several months back about the difference carbon wrapping made on barrel stiffness. The gunsmith hung a weight from the muzzle of several barrels of different profiles and noted the deflection with a dial indicator. His findings were very interesting. He found that a carbon wrapped barrel deflected the same as a steel barrel of the same weight. My take a away is that carbon fiber is not as stiff as the mfgs. Want us to believe and it really doesn’t improve barrel stiffness. I will try to find that thread and post it below. This is sort of related but not going to help you in the search for a light weight rifle, but there is a company doing some amazing things to “structure” barrels to almost completely deaden the harmonic resonance. Very interesting stuff. [MEDIA=youtube]C-7LKQYtU48[/MEDIA] [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Mitigating Barrel Whip and Harmonics
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