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Rifles, Reloading, Optics, Equipment
Suppressors
Submitted form 1 *UPDATE: approved!!
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<blockquote data-quote="cohunt" data-source="post: 2878838" data-attributes="member: 94491"><p>I can help once I find my notes---BUT, before we proceed with calculations you need a bunch of info. Or it's all moot</p><p></p><p>You need the specifics of the "largest" rifle you plan to shoot.</p><p>Cartridge, case capacity, powder, primer, bullet, barrel length to get a muzzle pressure from someone with quick-load</p><p></p><p>Then you need to know once again, case or chamber volume, bore dia, barrel length, internal volume of the blast chamber of your suppressor (that you havent built yet) and the safe working pressure - (not yield strength) of the suppressor body/material (this would be similar to a safe hoop strength working pressure)</p><p></p><p>If you are buying a threaded tube- the sellers/manufacturers will usually have this data if you ask.</p><p></p><p>In general, what you are calculating by using the volume of gas inside the barrel at the muzzle pressure is the blast chamber pressure once the gas pressure/volume fills the blast chamber.</p><p></p><p>You have a "small" volume of gas in the barrel at a specific pressure--- when that "small" volume fills the "larger" volume of the blast chamber-- the pressure will drop--- that pressure in the blast chamber will be the highest before it passes any baffles and that pressure must be within the swl of the suppressor body material.</p><p></p><p>You really ought to consider the strength of the aluminum threads too, this info could probably be found online also.</p><p></p><p>But I'll save you a bunch of work- don't use an aluminum suppressor tube with centerfire rifle cartridges. -- choose carbon steel/stainless/ti</p><p></p><p>It sounds more complicated than what it really is-- but with the "unknowns" of an f1 build its best to err on the side of caution</p></blockquote><p></p>
[QUOTE="cohunt, post: 2878838, member: 94491"] I can help once I find my notes---BUT, before we proceed with calculations you need a bunch of info. Or it's all moot You need the specifics of the "largest" rifle you plan to shoot. Cartridge, case capacity, powder, primer, bullet, barrel length to get a muzzle pressure from someone with quick-load Then you need to know once again, case or chamber volume, bore dia, barrel length, internal volume of the blast chamber of your suppressor (that you havent built yet) and the safe working pressure - (not yield strength) of the suppressor body/material (this would be similar to a safe hoop strength working pressure) If you are buying a threaded tube- the sellers/manufacturers will usually have this data if you ask. In general, what you are calculating by using the volume of gas inside the barrel at the muzzle pressure is the blast chamber pressure once the gas pressure/volume fills the blast chamber. You have a "small" volume of gas in the barrel at a specific pressure--- when that "small" volume fills the "larger" volume of the blast chamber-- the pressure will drop--- that pressure in the blast chamber will be the highest before it passes any baffles and that pressure must be within the swl of the suppressor body material. You really ought to consider the strength of the aluminum threads too, this info could probably be found online also. But I'll save you a bunch of work- don't use an aluminum suppressor tube with centerfire rifle cartridges. -- choose carbon steel/stainless/ti It sounds more complicated than what it really is-- but with the "unknowns" of an f1 build its best to err on the side of caution [/QUOTE]
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Rifles, Reloading, Optics, Equipment
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Submitted form 1 *UPDATE: approved!!
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