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Rifles, Reloading, Optics, Equipment
Gunsmithing
28 inch barrel on ar ?
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<blockquote data-quote="msalm" data-source="post: 442912" data-attributes="member: 8863"><p>Most AR10 long barrel variants are used in high-power type sports. 26" barrels are used, and mostly they go with an extended gas tube. The adjustable gas block isn't a bad idea, but if the builder starts smaller and function fires the rifle while opening up the gas port in the barrel you can do away with the adjustments. I've done that on about every new caliber I try, such as 17 Remington and 204 Rugers on the AR15 platform. Different length barrels and gas systems make a BIG difference on how large the gas port needs to be. I also read an article, I think on NJ highpower site that stated anything longer than 24 or it may have been 26" showed no velocity increase in the 260 Remington/6.5 Creedmore cartridges so you might want to just consider a 26" at the longest.</p></blockquote><p></p>
[QUOTE="msalm, post: 442912, member: 8863"] Most AR10 long barrel variants are used in high-power type sports. 26" barrels are used, and mostly they go with an extended gas tube. The adjustable gas block isn't a bad idea, but if the builder starts smaller and function fires the rifle while opening up the gas port in the barrel you can do away with the adjustments. I've done that on about every new caliber I try, such as 17 Remington and 204 Rugers on the AR15 platform. Different length barrels and gas systems make a BIG difference on how large the gas port needs to be. I also read an article, I think on NJ highpower site that stated anything longer than 24 or it may have been 26" showed no velocity increase in the 260 Remington/6.5 Creedmore cartridges so you might want to just consider a 26" at the longest. [/QUOTE]
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28 inch barrel on ar ?
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