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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR15 1:10 best reload
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<blockquote data-quote="Kevin Thomas" data-source="post: 497956" data-attributes="member: 15748"><p>BigSkyGP,</p><p> </p><p>A 1x7" is actually what the gov. uses in issue M16/M4s etc., and that's based primarily around the need to shoot the tracer rounds, which are REALLY long. The standard M855/SS109 round will do pretty well out of a 1x9", and I suspect would also probably work out of a 1x10". Haven't tried them in one, but I'm pretty sure they'd stablize.</p><p> </p><p>As far as the lighter bullets go, no problem at all. I've seen the term "overstabilized" get tossed around a bit here, but technically, there's no such thing. Spinning a bullet faster than is needed to achieve stability will accentuate any problems with jacket concentricity and MAY open groups. Assuming you're using good quality bullets with decently concentric jackets, they should shoot just fine out of a faster twist. Done so in many tests, but that was using good qulity stuff to begin with, so there wasn't much to magnify in terms of error.</p></blockquote><p></p>
[QUOTE="Kevin Thomas, post: 497956, member: 15748"] BigSkyGP, A 1x7" is actually what the gov. uses in issue M16/M4s etc., and that's based primarily around the need to shoot the tracer rounds, which are REALLY long. The standard M855/SS109 round will do pretty well out of a 1x9", and I suspect would also probably work out of a 1x10". Haven't tried them in one, but I'm pretty sure they'd stablize. As far as the lighter bullets go, no problem at all. I've seen the term "overstabilized" get tossed around a bit here, but technically, there's no such thing. Spinning a bullet faster than is needed to achieve stability will accentuate any problems with jacket concentricity and MAY open groups. Assuming you're using good quality bullets with decently concentric jackets, they should shoot just fine out of a faster twist. Done so in many tests, but that was using good qulity stuff to begin with, so there wasn't much to magnify in terms of error. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
AR15 1:10 best reload
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