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Rifles, Reloading, Optics, Equipment
Equipment Discussions
"Quiet crowns" - reducing percieved noise and ear damage?
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<blockquote data-quote="robbor" data-source="post: 121802" data-attributes="member: 1420"><p><strong>Re: \"Quiet crowns\" - reducing percieved noise and ear damage?</strong></p><p></p><p>Im working on somthing right now. I have a thread started about a week ago over at predatormasterforums. I dont remember origionally were I got the idea but have spoken to a maker of a barrel tuner and also saw that CPC does backbored barrels. A few of the gun smiths I have contacted in the past have never gotten back to me. Right now i have loaded up to test a 22-250 varmint rifle with reduced loads in the 3000-3500 fps range and 33 gr bullets. The rifle is fitted with a pvc unit that clamps on the barrel with hose clamp and uses a extra long pvc pipe coupler that is aprox 3" long. The big problem I am having it my sound meter only goes up to 126db and all my buds are bussy this weekend as i need someont to read and log the data as I shoot, of course after i confirm the unit doesn't blow to pieces. If you check over at my thread in about a week i will probably have some data to have an idea of how much it lowers the sound level. The next barrel I get will have this done to it with a 3-4 cylinder. It should be legal, but I have also emailed BATF but thay have yet to respond also, espically for my clamp on unit. I think there aslo may be an old thread here that i started.</p></blockquote><p></p>
[QUOTE="robbor, post: 121802, member: 1420"] [b]Re: \"Quiet crowns\" - reducing percieved noise and ear damage?[/b] Im working on somthing right now. I have a thread started about a week ago over at predatormasterforums. I dont remember origionally were I got the idea but have spoken to a maker of a barrel tuner and also saw that CPC does backbored barrels. A few of the gun smiths I have contacted in the past have never gotten back to me. Right now i have loaded up to test a 22-250 varmint rifle with reduced loads in the 3000-3500 fps range and 33 gr bullets. The rifle is fitted with a pvc unit that clamps on the barrel with hose clamp and uses a extra long pvc pipe coupler that is aprox 3" long. The big problem I am having it my sound meter only goes up to 126db and all my buds are bussy this weekend as i need someont to read and log the data as I shoot, of course after i confirm the unit doesn't blow to pieces. If you check over at my thread in about a week i will probably have some data to have an idea of how much it lowers the sound level. The next barrel I get will have this done to it with a 3-4 cylinder. It should be legal, but I have also emailed BATF but thay have yet to respond also, espically for my clamp on unit. I think there aslo may be an old thread here that i started. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
Equipment Discussions
"Quiet crowns" - reducing percieved noise and ear damage?
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