SBR build questions...

[burnsome]

new to the forum as well as the 6.5 G world and have a question or two for you guys who have possibly "been there and done that". I'm building up a SBR and am wondering how the Model 1 Sales 6.5 Sporter barrels are for a range blaster and short range (200 yards max) deer/hog/coyote hunting.

this is the barrel i'm looking at: http://www.model1sales.com/index.cfm?fus...ory_id=378 and cutting it down to 12-inches for use with a 308 cal suppressor on a full auto lower. Will be using an Aimpoint red-dot or a 4x scope for optics. If i can achieve 2-inch groups at 100 yards i'd be satisfied. if the project results are successful, will probably do another upper build with an 18-inch barrel of better quality.

my second question is ammo related.... is this Wolf 120gr MPT ammo decent for the above mentioned purposes? http://www.aimsurplus.com/product.aspx?i...ch=grendel

TIA for any inputs.

[warped]

Why not get a Templar Consulting LLC suppressed bbl? http://www.templarconsultingllc.com/temp..._Page.html

None of the negatives and all the positives.

You will get more FPS and still be suppressed in a length that is shorter than the 12" plus suppressor.

Then you would only need to pay for one Stamp

[gophernuts]

Yeah....what he said. Plus model1sales has horrible customer service if something went wrong.

[rasp65]

I realize you plan on cutting the barrel down and it is probably a good thing because I have never heard of 1/2 36 thread muzzle devices. The Wolf MPT was the least accurate ammo I have shot in my Grendel. I was getting 3" groups. OK for blasting, I wanted the cases for hunting.

[mtn_shooter]

Wolf 120 MPT hovers just over 1 MOA in my rifle (18" Stainless AA button rifled barrel). IMHO I'd buy an AA 16" barrel and cut it down for $25 more before the model 1 barrel.

That said, within 200yd I think you could easily pull off what you're wanting. Worst case scenario is that for hunting you buy AA or Hornady ammo, and for blasting you use MPT.

[burnsome]

roger that sirs. thanks for the tips and will check out AA and Templars offerings. might pick up a case of the Wolf MPT's for breaking in the barrel and checking function on full auto, etc.

[warped]

1/2 36 thread muzzle is for 9mm and stuff like that, they do it intentionally so a small bore device does not get installed and hurt someone when they try to put a larger bullet through it.

[warped]

burnsome, you will really appreciate that 16" suppressed bbl.

Almost no noise at all, except a sonic crack and hearing the action move.

Plus not having to fork out another $200 and getting scrutinized again for a SBR is worth it.

Templar is the only one making the suppressed bbl for the AR15.

It is based on a match grade bbl to start with.

It takes a lot of work and is not cheap but is really a great value.
Plus it works with the Templar rail system so it looks great.

[BjornF16]

I don't see any product info on the Templar website...I'm using I.E. 8...besides the usual dump microsoft, do I need another browser?

[warped]

Bob needs to update his website, hes been busy building weapons instead.
It is better just to email or call him.


bobjr@templarconsultingllc.com

(919) 757-7085

I think we would all rather have him working on weapons than playing with the website.

[NordicG3K]

I picked up a 12.5" barrel from Black Hole Weaponry. Stainless 1:8 polygonal twist. I also had it threaded 1/2x28 so I could use a PWS Phantom flash suppressor that I bored out for the 6.5. I haven't had a chance to try it out with a suppressor yet, but that will be my next toy. Black Hole Weaponry was good to work with, but they're a small outfit and so it took a while to get my barrel.

[burnsome]

nice looking gun!

[steel89]

Very nice!!

[burnsome]

what kind of MV's are you getting out of that 12.5-inch barrel?

my 12.5 is in build now and should have it up and running in a couple of weeks hopefully. have two brands/types of ammo to test and will provide MV data when i get it back in-service. will be running a Gemtec HVT 308 suppressor on mine.

[NordicG3K]

I just ordered some of the Wolf 120gn multi-purpose round. I also have some of the Hornady 123gn A-Max, plus some various handloads. Once the Wolf arrives I'll chrono the various loads through both my 18" and my 12.5" Grendels.

[burnsome]

got my 12.5-inch build back today and got out to burnsome....wolf 120gr MPTs had a muzzle vel of 2300fps...Hornady 124gr A-Max spit out at 2350fps. Hornady shot MOA with Leupold 1.25-4x Hog scope. Wolf shot about 2 MOA. not bad for a 12.5-inch barrel. no need for hearing protection with 308 Gemtech suppressor attached and runs like a scalded dog on full auto. I'm happy. had a few short-strokes/failure to eject when using a Smith muzzle brake on full auto. no problems on semi. Might need a heavier buffer? I have a standard 223 carbine buffer in it now.

[LRRPF52]

got my 12.5-inch build back today and got out to burnsome....wolf 120gr MPTs had a muzzle vel of 2300fps...Hornady 124gr A-Max spit out at 2350fps. Hornady shot MOA with Leupold 1.25-4x Hog scope. Wolf shot about 2 MOA. not bad for a 12.5-inch barrel. no need for hearing protection with 308 Gemtech suppressor attached and runs like a scalded dog on full auto. I'm happy. had a few short-strokes/failure to eject when using a Smith muzzle brake on full auto. no problems on semi. Might need a heavier buffer? I have a standard 223 carbine buffer in it now.

You do need a heavier buffer, like an H2 or H3 for full-auto use. A standard 2.9 oz. carbine buffer usually isn't ideal for even 5.56 carbines. Nice blaster by the way. I think 12.5" is one of the best routes to go for SBR's.

[burnsome]

thanks for the tip LRRPF52 - i think i have an H2 around somewhere so will try it next time out. I have a 9mm Colt AR buffer as well as an AAC-rate reducing buffer so might try those as well and see which one tunes it for the right cycle rate, etc...

[LRRPF52]

thanks for the tip LRRPF52 - i think i have an H2 around somewhere so will try it next time out. I have a 9mm Colt AR buffer as well as an AAC-rate reducing buffer so might try those as well and see which one tunes it for the right cycle rate, etc...

The 9mm buffer is a no-go from the start, since it has a much lighter internal counter-weight arrangement. Even though the buffer body is heavier on a 9mm buffer, the internal weights are nowhere near sufficient for a rifle-caliber.

If you use the AAC, make sure you have a real carbine recoil spring, as they sometimes send weak ones that won't even drive the BCG forward. I had that problem with one this winter. In 5.56 guns w/carbine gas and shorter barrels, H2 buffers seem to be the most reliable and bolt-bounce resistant buffers to use in full-auto guns.

[burnsome]

burnsome....