10.5 vs 11.5 inch AR

[dantiff2]

It would be a 50gr bullet. I use them in 3 other rifles. One being another AR and two being bolt action.

You may be able to get away with 50's. You'll have to use a fast burning propellant which will not be quiet (even with a suppressor). Something that gives you the most amount of burn. Guys with quickload can give you a hand there. Plug in various powders and see which is the best. The powder you already have, might not work with such a short barrel. Just some things to consider
Dan

 

[LVLAaron]

For a short barrel... use 77's

 

[dantiff2]

For a short barrel... use 77's

These will likely not work. nor will 69's. I've shot these in test media from a 16" barrel and got pencil like performance. I tried to use these for groundhog hunting 15+ years ago and witnessed a perfect center hit hog then a ricochet that took off 10 feet behind the animal and went 400 yards into a dirt hill after impact. The animal ran off into it's hole with a blood trail. So I went and shot a bunch into wet newspaper and phone books that are in buckets. I would get one or two bullets to tumble and break apart and another one that the nose would plug up and go 20" through the test media and do nothing. VERY unreliable and that was at 2650 fps. He would likely not be getting over 2300 fps with a 10.5" barrel. He needs a more violent hunting bullet that is designed to come apart at low velo.
Dan

 

[archerforkids]

Are you set on a 223/5.56 caliber? I run a 10.5" PSA barrel in 300 blackout and it still hits steel harder at 300 yards than my 16" 5.56 does when we shoot them side by side. Mine shoots, 125 tnt's, 150 gn interlocks fantastic! Just make sure your suppressor is rated for short barrels. Not all are!.
Dan

That's a great combo right there. 10.5" 300 blackout with 125 grain TNTs. If you know your dope you can hit 1 1/2" MOA out to 500 yards with a good barrel. Absolutely deadly inside 100 yards.

 

[SKWERLZ]

How is a muzzle break more effective at reducing noise than a suppressor?

Probably isn’t comparing noise but recoil instead.

 

[SecondsCount]

These will likely not work. nor will 69's. I've shot these in test media from a 16" barrel and got pencil like performance. I tried to use these for groundhog hunting 15+ years ago and witnessed a perfect center hit hog then a ricochet that took off 10 feet behind the animal and went 400 yards into a dirt hill after impact. The animal ran off into it's hole with a blood trail. So I went and shot a bunch into wet newspaper and phone books that are in buckets. I would get one or two bullets to tumble and break apart and another one that the nose would plug up and go 20" through the test media and do nothing. VERY unreliable and that was at 2650 fps. He would likely not be getting over 2300 fps with a 10.5" barrel. He needs a more violent hunting bullet that is designed to come apart at low velo.
Dan

Isn't a 125 grain out of a 10.5" barrel even slower than 2300?

With a 50 grain bullet in 5.56, the OP should see closer to 2700 FPS with an 11.5, which is what I recommend.

 

[dantiff2]

Isn't a 125 grain out of a 10.5" barrel even slower than 2300?

With a 50 grain bullet in 5.56, the OP should see closer to 2700 FPS with an 11.5, which is what I recommend.

Agreed ^
I'm saying the 69's and 77's will likely not work well in such a short barrel. He'd be much more benefited from a 50 grain as he'd like to use. I don't know the velo off the top of my head but your suggestion sounds reasonable.

Lookin at 300bo, I can't remember what my 125 gn TNT velo was but I was thinking it was right around 2300 fps from my 10.5".

 

[troupe]

If you are going with a short barrel, don't go over a 55 that will open up. A 40 or 50 would be better. Nothing will be quiet no matter what bullet you shoot. Don't forget hearing protection, even suppressed.

 

[troupe]

It's not .that's what your paying a fortune for less noise and less blast for folks around you otherwise a brake is better

Again to each there own

Suppressors are the new fad I just choose to not follow fads.but I get it and I'm not a fudd get what you like its Merica

Sir, with all due respect in this matter, you are out of league on this one. It has nothing to do with room clearings or jumping out of a vehicle. Jumping out of a vehicle for an assault team, the shorter muzzle brake would be your choice, but it has nothing to do with it being a shorter matter, it is for hearing and hearing alone. Your team would absolutely want to smoke you for being stupid in using a brake over a suppressor in that environment.

The OP was asking about a shorter barrel to keep his overall length down on his rifle with a suppresser and to help diminish the sound as much as possible. It is not a fad, but a fact that a suppresser is a better option and I for one would love to see the Hearing Act come to be the law of the land.

That being said, brakes also have a place and do a great job at minimizing recoil and muzzle jump at a severe price of increased noise. My 3 gun rifles was tuned with a brake and it literally felt like a 22 when shooting in matches. Double taps at 100 yards was as easy as pulling the rigger twice and the shots would be there.

Save your hearing as much as possible, the suppressers are far from a fad.

 

[jdh47]

AR pistols are in some respects over achieving. You're going to be instantly unpopular with anyone within 160 feet of you. The sound and concussion puts me in mind of a howitzer.

 

[SecondsCount]

AR pistols are in some respects over achieving. You're going to be instantly unpopular with anyone within 160 feet of you. The sound and concussion puts me in mind of a howitzer.

He is using it with a suppressor.

Linear compensators make things more manageable.

 

[JB10]

I talked to suppressor company. As long as not mag dumping will be fine. If mag dumping might burn up first baffle

 

[dk17hmr]

I have an SBR AR and my shortest 223 barrel is 13.7". I don't use it for anything other than fast steel shooting . I do have an 11.3" 6.8 SPC that I have used suppressed for deer hunting and it works really well for that but I really do like that over all length. I also have a 9" 300blk.

11.3" plus the suppressor is my preferred over all length

 

[precision1]

Sir, with all due respect in this matter, you are out of league on this one. It has nothing to do with room clearings or jumping out of a vehicle. Jumping out of a vehicle for an assault team, the shorter muzzle brake would be your choice, but it has nothing to do with it being a shorter matter, it is for hearing and hearing alone. Your team would absolutely want to smoke you for being stupid in using a brake over a suppressor in that environment.

The OP was asking about a shorter barrel to keep his overall length down on his rifle with a suppresser and to help diminish the sound as much as possible. It is not a fad, but a fact that a suppresser is a better option and I for one would love to see the Hearing Act come to be the law of the land.

That being said, brakes also have a place and do a great job at minimizing recoil and muzzle jump at a severe price of increased noise. My 3 gun rifles was tuned with a brake and it literally felt like a 22 when shooting in matches. Double taps at 100 yards was as easy as pulling the rigger twice and the shots would be there.

Save your hearing as much as possible, the suppressers are far from a fad.

Sir, with all due respect in this matter, you are out of league on this one. It has nothing to do with room clearings or jumping out of a vehicle. Jumping out of a vehicle for an assault team, the shorter muzzle brake would be your choice, but it has nothing to do with it being a shorter matter, it is for hearing and hearing alone. Your team would absolutely want to smoke you for being stupid in using a brake over a suppressor in that environment.

The OP was asking about a shorter barrel to keep his overall length down on his rifle with a suppresser and to help diminish the sound as much as possible. It is not a fad, but a fact that a suppresser is a better option and I for one would love to see the Hearing Act come to be the law of the land.

That being said, brakes also have a place and do a great job at minimizing recoil and muzzle jump at a severe price of increased noise. My 3 gun rifles was tuned with a brake and it literally felt like a 22 when shooting in matches. Double taps at 100 yards was as easy as pulling the rigger twice and the shots would be there.

Save your hearing as much as possible, the suppressers are far from a fad.

Lol op never said in his original post about sound and there isn't anywhere thick in Arizona.lmao

Thanks for trying to educate me but I fully understand everything going on here ...

Like I said I know I'm odd man out and I don't like to follow the status quo...op asked a question he got my 2 cents

Anyways back to something new besides PSA ar's
Y'all have at it

 

[JB10]

Im leaning more to the 11.5in. While the 16in and a suppressor is still not that bad was kicking around a shorter one just because. Speed wise with a 50gr bullet will still expand enough at the distances i intend to use it. I might get lucky and have 100 yards. But not often unless i plan on going to a more open area then im taking a bolt rifle anyways. Ill do some more thinking before i do anything.

 

[dk17hmr]

That length will probably do what your looking for.... I'd look into a. adjustable gas block and maybe a gas buster charging handle though short suppressed ARs can get very gassy

 

[JB10]

Lol op never said in his original post about sound and there isn't anywhere thick in Arizona.lmao

Thanks for trying to educate me but I fully understand everything going on here ...

Like I said I know I'm odd man out and I don't like to follow the status quo...op asked a question he got my 2 cents

Anyways back to something new besides PSA ar's
Y'all have at it

Lets just stop with the sarcasm. I was asking a direct question about 2 different barrel lengths with a suppressor, suppressors are for sound suppression, not to look cool. And yes there is thick desert shit around where i hunt. It aint gereen like back east. I get on this site due to valued opinions form people that know more than me or that have experience with something. This site should stay different than others with the crap talking. Lets help each other out and all get along.

 

[precision1]

Not sure what y'all would do if you had to carry an m1 garand in combat just saying
Ok after my opinion was attacked im done ...

It's two way street every where you go

I'm sitting here with a marine just left 2/7 weapons company infantry laughing at the guy talking about his group.lol troupe
My son

 

[precision1]

Lets just stop with the sarcasm. I was asking a direct question about 2 different barrel lengths with a suppressor, suppressors are for sound suppression, not to look cool. And yes there is thick desert shit around where i hunt. It aint gereen like back east. I get on this site due to valued opinions form people that know more than me or that have experience with something. This site should stay different than others with the crap talking. Lets help each other out and all get along.

Sorry I think the it's a fad comment got some folks mad I apologize

 

[JB10]

I do not think the M1 grand is still in usage at this time. I think the armed forces went to lighter wepons. But i might be wrong. At least my Daughter thats in there as we speak that is going through weapons combat training this month is using an M4. Like you said you prefer a 26in barrel bolt gun. I do too from the bench. When im hiking around 15 stands or more in a day and do it most weekends from September through February id like to cut some weight. Before i got my suppressor i was carrying a bolt rifle and a shotgun into every stand just in case. Hence why im kicking around the idea of a shorter AR. My gunsmith just retired in December. I should have had him chop down one of my cheepy 223 fron 22in to 16in and thread it. But i was not thinking he was going to retire this soon.