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Not being sarcastic or smartass,Originally Posted by OgenRwot
Serious question:
Why would you want subsonic rounds in 223/308?
you cannot effectively zero or kill anything at range that way can you?
The trajectories would be awful
Asking for my betterment
you run subsonic ammo if your using a supressor, so you dont get the crack of the bullet breaking the sound barrier, i would think, not sure though.
Would such rounds cycle an action? A rifle that shoots full bore .223 or .308 expects a certain amount of power and the subsonic probably wouldn't work. I suppose you could use bigger bullets but then you are getting into feeding and barrel twist issues.
Steve
From what I've read and understand, subsonics require you to manually cycle the bolt... so I don't know how they'd be useful in a FA...
I'm missing something I think. Also want to know the questions Byte asked for my betterment as well.
Can't you adjust the gas system? Same thing as running different types of loads through a Siaga.
"There are no finger prints under water."
Oh yeah, didn't think about that... but then back to original question, what about stopping/killing power at distance? Isn't the subsonic WAY lower in speed/etc?... are they just used for paperpunching, etc or is there an actual "tactical" use for them besides sound suppresion?
I don't have one, but I think that it is as important to have use subsonic loads for something that is already 800 yards away. Full power rounds through a suppressor, doesn't eliminate the supersonic crack, but without the muzzle blast, you don't hear the crack until the bullet goes by you, so it is still very difficult to locate.
Again, I don't know, but I assume that subsonic .308 through a suppressor is used for pretty close stuff.
"There are no finger prints under water."
Big +1. You can tell when something isn't right. Bullet 1 recoil would have felt different. Bullet 2 would have felt WAY different. If you pull the trigger and something feels wrong...stop. Don't be like this guy and just think it's a "bad primer". Check your barrel people.
It may belong in the reloader section, but I have reloaded may thousands of rounds each for pistol, rifle and shotgun. Not one single dud. I have had some shotgun shells that were a little light (I load them progressive and that can happen if you zone out) and let me tell you, you know it when they are light. Just pay attention to what you are doing when reloading AND when shooting and you'll avoid this.
Suppressed ARs are generally SBR setups designed for building clearing, hostage rescue, etc., so they are typically designed for use under 100 meters. A 55 grain bullet leaving the muzzle at 1000 fps would be pretty effective at 50 meters, and still dangerous at 100 meters, but pretty much useless at 250 meters. As far as gas systems go, there are ways around the reduced volumes and pressures involved, such as opening the gas port area, or even suing multiple ports to feed the system. It would be important to never fire full power ammo in such a gun, though, as it would be easy to over accelerate the bolt.
223 tactical 55 gr., .209 B.C.www.hornady.comRange (yards)
.............. . Muzzle 50 100 200 300 400 500
Velocity (fps)1000 955 917 852 798 749 705
Energy (ft.-lb.)122 111 103 89 78 69 61
Trajectory (25 yd. z) -1.5 -0.8 -9.6 -58.9-155.9-307.0-519.6
Come Up in MOA-1.51.59.128.149.673.399.2
the bullet still would have more energy than a .22LR at 300 yards, but you'd have to aim almost 14 feet high....
Ah, interesting. Thanks TFogger.
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