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Rifles, Reloading, Optics, Equipment
Rifles, Bullets, Barrels & Ballistics
6mm ARC
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<blockquote data-quote="CaptnC" data-source="post: 1917355" data-attributes="member: 101755"><p>As for the AR bolt issues, I personally have had 5 - 10.5", 16" (didn't shoot with a can on it, but fine without) sold that upper, 18", 20" and 24".</p><p></p><p>IMO-it does better with lighter bullets...which follows what the 6mm on the AR-15 platform suggests.</p><p></p><p>I'm in the process of figuring out which 6.5mm, 100gr bullet to use for hunting. So I can get a bit more velocity and still have the accuracy I want. 90 to 110 grains seems to be a sweet spot for accuracy in a couple of my rifles. </p><p></p><p>I did an experiment with 120gr speer bullets...cut the lead tip off and hand drilled into the bullet to get the weight down 10 grains. I made a jig the swedge the tips down a little so it wouldn't have the big HP end.</p><p></p><p>Best shooting bullet I've used in three different AR's 10.5", 18" and 20" barrels.</p><p></p><p>But the 6mm bullets (heavy for caliber) will out perform the light weight 6.5mm bullets because of a better BC so I can see the advantage.</p><p></p><p>The 6.5mm 90gr TNT are sweet shooters but I wouldn't try one on a deer!</p></blockquote><p></p>
[QUOTE="CaptnC, post: 1917355, member: 101755"] As for the AR bolt issues, I personally have had 5 - 10.5", 16" (didn't shoot with a can on it, but fine without) sold that upper, 18", 20" and 24". IMO-it does better with lighter bullets...which follows what the 6mm on the AR-15 platform suggests. I'm in the process of figuring out which 6.5mm, 100gr bullet to use for hunting. So I can get a bit more velocity and still have the accuracy I want. 90 to 110 grains seems to be a sweet spot for accuracy in a couple of my rifles. I did an experiment with 120gr speer bullets...cut the lead tip off and hand drilled into the bullet to get the weight down 10 grains. I made a jig the swedge the tips down a little so it wouldn't have the big HP end. Best shooting bullet I've used in three different AR's 10.5", 18" and 20" barrels. But the 6mm bullets (heavy for caliber) will out perform the light weight 6.5mm bullets because of a better BC so I can see the advantage. The 6.5mm 90gr TNT are sweet shooters but I wouldn't try one on a deer! [/QUOTE]
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