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The Range
NFA & Class III Discussion
10.5” 5.56 SBR Ammo Recommendations
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<blockquote data-quote="TulsaMike" data-source="post: 3681898" data-attributes="member: 49625"><p>Considering 99% use their rifles for plinking or light game, and yours being an sbr which means pretty much only fun, just run whatever you can find. I’m personally a velocity whore, so I like fast bullets. I happen to have a safe full of 70 gr tap barrier, but that’s what I’m issued at work. I’ve run tons of different kinds of ammos over the years on sbrs, and I always go back to 64 gr or less due to the velocity loss with heavier bullets. A 10.5 is going to lose roughly 400 fps from a 16, and when you’re pushing those 70+ gr bullets barely over 2000 fps, you’re really lacking energy and diminishing the ability of the round. The tap stuff does run a bit hotter in a sbr, but I run it because that’s what I’m given, not because that’s what I chose. Prior to, we had the fbi 62 gr ammo which was sub moa and very hot, but it was soft point so only meant for flesh targets and sucked at ranges over 300 yards or for penetration. If your goal is a flesh target inside of 200, those 62 gr fbi or 64 gr speer gold dot LE rounds are great, and online retailers get them all the time to resell. They run hot enough to do severe damage even through light armor or walls, but don’t over penetrate like a fmj or barrier blind round. If your goal is penetration and velocity, which is what does the damage, run something 55 gr so you can maintain 2500-2600 fps or more. There are also some very violent 45-50 gr bullets for light game that basically vaporize small targets, and have been known to defeat light armor plates (lots of videos on YouTube). I really don’t like running 70+ Gr in barrels under 14.5, but buy some random boxes online and do some accuracy tests, or buy some of the ballistic gel kits and see what works best for you. If you have a chrono, even better. When I had my lab radar and tested every round I bought and hand loaded, I was amazed how far off advertised velocities were, and how slow they really are out of most short barrels.</p></blockquote><p></p>
[QUOTE="TulsaMike, post: 3681898, member: 49625"] Considering 99% use their rifles for plinking or light game, and yours being an sbr which means pretty much only fun, just run whatever you can find. I’m personally a velocity whore, so I like fast bullets. I happen to have a safe full of 70 gr tap barrier, but that’s what I’m issued at work. I’ve run tons of different kinds of ammos over the years on sbrs, and I always go back to 64 gr or less due to the velocity loss with heavier bullets. A 10.5 is going to lose roughly 400 fps from a 16, and when you’re pushing those 70+ gr bullets barely over 2000 fps, you’re really lacking energy and diminishing the ability of the round. The tap stuff does run a bit hotter in a sbr, but I run it because that’s what I’m given, not because that’s what I chose. Prior to, we had the fbi 62 gr ammo which was sub moa and very hot, but it was soft point so only meant for flesh targets and sucked at ranges over 300 yards or for penetration. If your goal is a flesh target inside of 200, those 62 gr fbi or 64 gr speer gold dot LE rounds are great, and online retailers get them all the time to resell. They run hot enough to do severe damage even through light armor or walls, but don’t over penetrate like a fmj or barrier blind round. If your goal is penetration and velocity, which is what does the damage, run something 55 gr so you can maintain 2500-2600 fps or more. There are also some very violent 45-50 gr bullets for light game that basically vaporize small targets, and have been known to defeat light armor plates (lots of videos on YouTube). I really don’t like running 70+ Gr in barrels under 14.5, but buy some random boxes online and do some accuracy tests, or buy some of the ballistic gel kits and see what works best for you. If you have a chrono, even better. When I had my lab radar and tested every round I bought and hand loaded, I was amazed how far off advertised velocities were, and how slow they really are out of most short barrels. [/QUOTE]
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10.5” 5.56 SBR Ammo Recommendations
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