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The Range
Rifle & Shotgun Discussion
Some thoughts about using an AR15 for home defense
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<blockquote data-quote="davek" data-source="post: 2976961" data-attributes="member: 519"><p>Has anyone modified their AR15 to be optimized for self defense at short range?</p><p>Current AR15s generally have a 1/7 to 1/9 twist rate. That stabilizes the bullets for long range shooting. The originals have a 1/12 twist rate so the bullets were less stable and would tumble on impact. So, at short range, 1/12 twist would have better terminal characteristics.</p><p></p><p>The other problem is muzzle blast/noise. If the 5.56x45 were downloaded to 2000 fps out of the barrel - more or less the normal velocity at 300 yds. - I think it'd still be pretty effective. Muzzle blast would still be pretty loud, but greatly reduced. That would be more energy than the 5.7x28 and, with the right bullet choice, could be an exceptional defensive weapon.</p><p></p><p>Then again maybe I'm just nuts thinking this way.</p></blockquote><p></p>
[QUOTE="davek, post: 2976961, member: 519"] Has anyone modified their AR15 to be optimized for self defense at short range? Current AR15s generally have a 1/7 to 1/9 twist rate. That stabilizes the bullets for long range shooting. The originals have a 1/12 twist rate so the bullets were less stable and would tumble on impact. So, at short range, 1/12 twist would have better terminal characteristics. The other problem is muzzle blast/noise. If the 5.56x45 were downloaded to 2000 fps out of the barrel - more or less the normal velocity at 300 yds. - I think it'd still be pretty effective. Muzzle blast would still be pretty loud, but greatly reduced. That would be more energy than the 5.7x28 and, with the right bullet choice, could be an exceptional defensive weapon. Then again maybe I'm just nuts thinking this way. [/QUOTE]
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Some thoughts about using an AR15 for home defense
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