Current Production Lightweight 11.5 or 12.5 Barrels?

[Wake27]

What FB is this?

I think it was in the Forward Controls Design Group.


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[CoGT3]

I think it was in the Forward Controls Design Group.


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It was, similar topic about the criterion 12.5 barrels.


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[themonk]

Have a lot of 62-64gr HD ammo on hand which is why he tested with light/mid loads. Also having him build up another matching upper with a 13.9” CORE barrel (pistol/rifle combo with Law folders). When I have both I’ll try a little of everything and try to find the happy balance of accuracy, ready availability of HD ammo, and practice ammo to match. Already have some 70gr Barnes, 75gr GD, and multiple 77gr waiting.


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I am interested how it shoots with heavier loads.

[Blackhalo]

Interesting groups. Don't know that I'll expect sub moa with Wolf Gold, but impressive.

Waiting on my mount for my new Razor 1-10. I assembled a upper with a 16" CORE just for the optic. Hopefully I can get some groups shot in the next couple of weeks.

[justin_247]

EDITED: It appears that Criterion is not publishing accurate barrel weight specs on their website, so the comparisons I was making were incorrect.

[js8588]

EDITED: It appears that Criterion is not publishing accurate barrel weight specs on their website, so the comparisons I was making were incorrect.

So what are the correct weight specs? Also the .064 gas port has me thinking it's likely not the correct choice for me. Usually I'll be running M855 in this build (sub moa accuracy is not a concern) but I like my ARs to be able to cycle & lock back using anything should the occasion ever arise where ammo on hand isn't a matter of choice. I do not own a suppressor & have no plans to.

[Biggy]

My Hodge 12.5" inch barrels weigh exactly 21.5 ounces and my Criterion Core 12.5" barrel weighs exactly 22.8 ounces. Criterion had the 12.5 Core barrel's weight listed as 1.45 lbs or 23.2 oz's on their website. A .4 ounce difference from my accurate calibrated scale. I'm waiting on the redesigned BCM MK2 stripped uppers to come out to give these barrels a home. Bravo Co told me it would be later this year on the MK2 uppers, and that been a couple of months ago. I haven't pin gauged the gas port on my 12.5 Core barrel yet, but using what I had laying around, I am guessing it is between .066"-.067" ID

[opngrnd]

So what are the correct weight specs? Also the .064 gas port has me thinking it's likely not the correct choice for me. Usually I'll be running M855 in this build (sub moa accuracy is not a concern) but I like my ARs to be able to cycle & lock back using anything should the occasion ever arise where ammo on hand isn't a matter of choice. I do not own a suppressor & have no plans to.

Are you talking 11.5" or 12.5"? My 12.5" Core isn't having issues with mid pressure 223 ammo. I can function test with PMC Bronze if you'd like.

[justin_247]

So what are the correct weight specs?

Biggy posted them below. I'm just going to bow out of this discussion since we're no longer talking about lightweight barrels here.

The 12.5" Criterion CORE appears to be about the same weight as 12.5" government profile barrels (right in-between the weight of DD's and BCM's 12.5" barrels), heavier than BCM's 14.5" ELW barrel, and the same weight as Criterion's 16" pencil barrel. But I have to rely on the weights posted here and compare them with the weights posted on their website and others, so...

[js8588]

Are you talking 11.5" or 12.5"? My 12.5" Core isn't having issues with mid pressure 223 ammo. I can function test with PMC Bronze if you'd like.

I was originally going to go with an 11.5 because I couldn't find a 12.5 chrome lined below ~$400 (Noveske or Hodge). The Criterion is interesting. No need to do an ammo test on my account, though I'm sure the rest of the internet wouldn't mind having the results.

You may have specified further up thread, but what buffer/carrier setup are you running with it?