Wanting to get an sbr? 223 or 300 blk [Archive] - Glock Talk

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madriverbullets
02-05-2012, 10:18
I have both these rifles in 16 inch i would like to build one in one of the following calibers but cant decide which .Please keep this civil i dont want it locked can you just give me the facts thank you . sorry not to clarify was going to suppress either platform and was looking at a factory sbr from PWS

WoodenPlank
02-05-2012, 10:24
.300 = Less ammo available on the ground, good ballistics from a short barrel, great suppression ability

5.56 = More ammo on the ground, decent ballistics with good ammo, not as good for suppressing

You can always do both: Either an upper that supports quick-change barrels, or two separate uppers.

Are you going to buy a complete, factory built SBR or Form 1 a receiver?

Mayhem like Me
02-05-2012, 12:19
300 ACC suppresses better, and is more efficient in an SBR.

And with the full power loads it gives better terminal performance.

Bighoss
02-05-2012, 17:21
I am in the same spot as you. I am building my first SBR and I think the choice is easy I am going with a 9" 300 blackout. Just because it preforms better in a short barrel and it does well suppressed. I also have the new AAC SR7 on order and the great thing is once I recover from all the spending I have done on this set-up. I will build a 12.5" 5.56 upper and I will be able to use the SR7 on both. Hope that helps you decide.

boomhower
02-05-2012, 18:34
As long as you are OK with the ammo availability and cost 300BLK is the better SBR choice.

WoodenPlank
02-05-2012, 18:36
As long as you are OK with the ammo availability and cost 300BLK is the better SBR choice.

In all fairness, 5.56 SBRs generally are going to require higher end, heavier, and more expensive ammo to perform reliably for SD/HD uses. That doesn't matter for range use, but it is still a consideration.

Jer
02-06-2012, 00:07
I too wanted a shorter SBR (less then 10") and also wanted suppressed so after some research I opted for 300BLK and couldn't be happier. Gunn 220gr ammo is like $15/box and with my YHM 30cal suppressor this thing shoots SO quiet that I can't believe it's only a 9" upper. I highly recommend.

https://lh4.googleusercontent.com/-JF0GwnXCyRs/TxIVClrHbeI/AAAAAAAACZY/BdiLVUXT33c/s1024/Car%2520AR.jpg

Javelin
02-06-2012, 00:29
Take it for what it's worth. I currently have Noveske 10.5" SBRs in 5.56 and 300BLK.

I would recommend the 300BLK especially if you are going to suppress or hunt with it.

:wavey:

Javelin
02-06-2012, 00:31
In all fairness, 5.56 SBRs generally are going to require higher end, heavier, and more expensive ammo to perform reliably for SD/HD uses. That doesn't matter for range use, but it is still a consideration.

This is very true. And 300BLK ammo is coming in at $12/box now for 115gr variety. My 5.56 ammo I keep for my 10.5" is around $20/box and the 300BLK will still outperform it in every way imaginable.

:wavey:

Jer
02-06-2012, 00:36
This is very true. And 300BLK ammo is coming in at $12/box now for 115gr variety. My 5.56 ammo I keep for my 10.5" is around $20/box and the 300BLK will still outperform it in every way imaginable.

:wavey:

If you can find it in stock somewhere Gunn makes 220gr subsonic 300BLK ammo for ~$15/box and it shoots very consistently.

Javelin
02-06-2012, 00:42
If you can find it in stock somewhere Gunn makes 220gr subsonic 300BLK ammo for ~$15/box and it shoots very consistently.

I saw that on Aimsurplus and then looked at their website and saw they employed Veterans and that makes up the entire staff.

Probably should have jumped on that deal but had already purchased so much Remington and CMMG (AAC Brass) ammo in 220gr that I didn't.

Good to hear that they make decent ammo. How were your groups at 100yards?

madriverbullets
02-06-2012, 06:53
Jer that rifle look nasty can you give some of the specs for that rifle thanks again Also have decided to go 300 blk for the build thanks guys plus i already have a 223 sbr in a sig 556 which aint the most quietest suppressor form

eracer
02-06-2012, 07:22
This is very true. And 300BLK ammo is coming in at $12/box now for 115gr variety. My 5.56 ammo I keep for my 10.5" is around $20/box and the 300BLK will still outperform it in every way imaginable.

:wavey:Except beyond 200 yards.

(Happy owner of a .300 SBR) :supergrin:

Jer
02-06-2012, 11:22
I saw that on Aimsurplus and then looked at their website and saw they employed Veterans and that makes up the entire staff.

Probably should have jumped on that deal but had already purchased so much Remington and CMMG (AAC Brass) ammo in 220gr that I didn't.

Good to hear that they make decent ammo. How were your groups at 100yards?

It's running MOA at 100yds which is what I had hoped for. It's plenty accurate considering it's setup for 50yds and in.

Jer that rifle look nasty can you give some of the specs for that rifle thanks again Also have decided to go 300 blk for the build thanks guys plus i already have a 223 sbr in a sig 556 which aint the most quietest suppressor form

It's your basic 9" AAC upper which has a Knight's Armament URX III rail custom made for AAC to their specs. The lower is a LMT with JP Fire Control group. The suppressor is a YHM Phantom 7.62 QD. The rest you can pretty much see.

Here's another pic that's easier to see the rifle:

https://lh3.googleusercontent.com/-sFJzf2giJrQ/TuUQ3POFLzI/AAAAAAAACXA/GIXjTG1Qsnk/s1024/300BLK-2.jpg

Javelin
02-06-2012, 12:32
Except beyond 200 yards.

(Happy owner of a .300 SBR) :supergrin:

You're not able to pull anything past 200 yards with 115gr ammo? No kidding/