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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
Does A Can or Suppresor Increase Back Pressure and Decrease Velocity??? Well????
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<blockquote data-quote="vortech347" data-source="post: 2439312" data-attributes="member: 73645"><p>Actually, I don't think it is counterintuitive. Look at AR's and where they put the gas port and size depending on barrel length. A rifle gas system has a smaller port and it's further down the barrel. That seems to support the idea that the longer barrel has more backpressure, too. If you put a carbine length gas port and size on a rifle length barrel you'll be way overgassed.</p><p></p><p>So the main reason a can adds velocity, even though it's bigger than the bore and unrifled, is the fact it effectively adds a very small amount of barrel length to the system.</p><p></p><p>Good thread.</p></blockquote><p></p>
[QUOTE="vortech347, post: 2439312, member: 73645"] Actually, I don't think it is counterintuitive. Look at AR's and where they put the gas port and size depending on barrel length. A rifle gas system has a smaller port and it's further down the barrel. That seems to support the idea that the longer barrel has more backpressure, too. If you put a carbine length gas port and size on a rifle length barrel you'll be way overgassed. So the main reason a can adds velocity, even though it's bigger than the bore and unrifled, is the fact it effectively adds a very small amount of barrel length to the system. Good thread. [/QUOTE]
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Does A Can or Suppresor Increase Back Pressure and Decrease Velocity??? Well????
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