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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is a barrel's resonant frequency static?
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<blockquote data-quote="BillR" data-source="post: 636093" data-attributes="member: 462"><p>A few years ago on Benchrest Central Bill Calby who is a small bore gunsmith made the statement that he could stop a barrel from doing just that by the use of a what I call a harmonic balancer on the end of a barrel. This was a piece that went on the end of the barrel and was threaded so a weight could be added to it and by turning it in and out you could find a sweet spot that turn the barrel into what is basically called a hummer that shot great no matter what load just by adjusting the weight to match the load rather than adjusting the load to match the gun. Thats kind of a short sweet version of the whole thing. Bill was a bit short on his info and wanted someone else to develop it and said he didn't have the time and wanted someone else to build it and make it work. He got laughed at a lot but in the end a couple believers built some to try out and found that they worked to a degree but I about that time I got into long range shooting and kind of let my directions change and don't really know where that all went. They are used on small bore rifles and do work but any more than that I can't tell you. I think there are still some articles on Benchrest Central about how the barrel will whip and info on what is happening when you are changing a load to match the guns harmonics and finding what is called the sweet spot. It would of been nice is someone had more money than I had and the time to work on it because it is a pretty good idea that Bill C put foreword. It would of been a case of finding your fastest load and then tuning the weight to match that load. Just never found out if it worked or not.</p></blockquote><p></p>
[QUOTE="BillR, post: 636093, member: 462"] A few years ago on Benchrest Central Bill Calby who is a small bore gunsmith made the statement that he could stop a barrel from doing just that by the use of a what I call a harmonic balancer on the end of a barrel. This was a piece that went on the end of the barrel and was threaded so a weight could be added to it and by turning it in and out you could find a sweet spot that turn the barrel into what is basically called a hummer that shot great no matter what load just by adjusting the weight to match the load rather than adjusting the load to match the gun. Thats kind of a short sweet version of the whole thing. Bill was a bit short on his info and wanted someone else to develop it and said he didn't have the time and wanted someone else to build it and make it work. He got laughed at a lot but in the end a couple believers built some to try out and found that they worked to a degree but I about that time I got into long range shooting and kind of let my directions change and don't really know where that all went. They are used on small bore rifles and do work but any more than that I can't tell you. I think there are still some articles on Benchrest Central about how the barrel will whip and info on what is happening when you are changing a load to match the guns harmonics and finding what is called the sweet spot. It would of been nice is someone had more money than I had and the time to work on it because it is a pretty good idea that Bill C put foreword. It would of been a case of finding your fastest load and then tuning the weight to match that load. Just never found out if it worked or not. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Is a barrel's resonant frequency static?
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