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Posted: 10/16/2009 2:54:57 PM EDT
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I just came across this article, read the paragraph marked "The Gas System" and it got me thinking. The Accurate AR
It said," Look also to see that the gas tube is floating in the center of its receiver hole.". I always knew aligning the gas tube was important for proper functioning but would precisely aligning it to where it doesn't touch any of the sides of the gas tube port on the upper receiver increase accuracy at all? I just checked my rifle and the gas tube does touch one side of the gas port hole but seeing has how it's a 1MOA rifle I fail to see the problem... Any thoughts? |
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I am inclined to believe that it does matter, but don't ask me to prove it. I think that many would argue that a gas run semi-auto should be more accurate than a piston type gun (in theory) due to the lack of moving parts in contact with the barrel. That isolates the barrel from external vibrations that can have an adverse impact on accuracy. When you have a gas tube that is binding on the gas key, I suspect you have a greater potential for accuracy robbing vibrations to feedback through your gas system to your barrel. Also, I would guess that when the gas tube contacts the upper reciever because it is not properly centered you have that same effect.
How much does it matter (if it matters at all?) probably not a lot. |
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