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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
.300 Blackout vs 5.56
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<blockquote data-quote="dolomite_supafly" data-source="post: 1475225" data-attributes="member: 25709"><p>8 twist will stabilize anything that is magazine fed. 8 twist will also let you shoot lightweight varmint bullets. </p><p></p><p>7 twist will cause some lightweight varmint bullets to come apart from centrifugal force. I have had 53g SMKs come apart in a 7 twist. </p><p></p><p>I have had an AR15 with everything from a 10.5" barrel to a custom 26" barrel. My personal preference is an 18" barrel that is not a bull barrel. Bull barrels add unneeded weight unless you are hunting prairie dogs where the barrel can heat up. But for most people a standard profile is perfectly fine without adding weight.</p><p></p><p>As far as 5.56 versus 223 there has been several studies done showing a far amount of 5.56 marked guns actually having 223 chambers. Shooting 5.56 in a 223 will not blow your gun up. It might show some pressure on the brass but even that isn't anything to worry about. I have an AD with a 223 match chamber and it has only had 5.56 fired out of it without an issues at all. If shooting 5.56 in 223 chambers caused the gun to blow up we would hear about it a lot more.</p><p></p><p>And while you are building it install an adjustable has block. Most ARs are over gassed so the manufacturers do not have to do warranty work on a gun that won't fire cheap, underpowered ammunition. With an adjustable has block you can tune the gun and reduce recoil, reduce has in the face, reduce crud in the receiver and make the gun more reliable. With an adjustable has block that is tuned and a quality muzzle brake an AR will Feel like a 22.</p></blockquote><p></p>
[QUOTE="dolomite_supafly, post: 1475225, member: 25709"] 8 twist will stabilize anything that is magazine fed. 8 twist will also let you shoot lightweight varmint bullets. 7 twist will cause some lightweight varmint bullets to come apart from centrifugal force. I have had 53g SMKs come apart in a 7 twist. I have had an AR15 with everything from a 10.5" barrel to a custom 26" barrel. My personal preference is an 18" barrel that is not a bull barrel. Bull barrels add unneeded weight unless you are hunting prairie dogs where the barrel can heat up. But for most people a standard profile is perfectly fine without adding weight. As far as 5.56 versus 223 there has been several studies done showing a far amount of 5.56 marked guns actually having 223 chambers. Shooting 5.56 in a 223 will not blow your gun up. It might show some pressure on the brass but even that isn't anything to worry about. I have an AD with a 223 match chamber and it has only had 5.56 fired out of it without an issues at all. If shooting 5.56 in 223 chambers caused the gun to blow up we would hear about it a lot more. And while you are building it install an adjustable has block. Most ARs are over gassed so the manufacturers do not have to do warranty work on a gun that won't fire cheap, underpowered ammunition. With an adjustable has block you can tune the gun and reduce recoil, reduce has in the face, reduce crud in the receiver and make the gun more reliable. With an adjustable has block that is tuned and a quality muzzle brake an AR will Feel like a 22. [/QUOTE]
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Rifles, Reloading, Optics, Equipment
AR15/10 Rifles
.300 Blackout vs 5.56
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