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I'll post what I find about the gas-port when mine arrives. Also weight is listed at 24.5oz which is pretty beefy in relation to how the profile looks. If that is true I think it might even be heavier than Noveske's 12.5" CHF LGPRLP barrel, which has a thicker looking profile. I'll weigh both and see.
68 GP size... these have a enhancement over typical CHF. New barrels processes still being developed to be ready by SHOT 18. I believe .065-.068 are on a similar plateau for gassing in a carbine gas, opted to go with slightly bigger as I run suppressed and car gas is dirtier... my next run may be .065 just because... got good long term data on 68, and it kicks ass, but want to see long term data on 65 with hot suppressed ammo.
Thanks for all the kind words, been working hard building a brand.... cheers, Jim
Thanks for clarifying. Can't wait to get it.
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I am thinking Jim alluded to the answer taking into account the higher pressures of m855a1 spoken about in the optactical product page.
And kinda getting back to my op, Hodge Defense was one of the main movers that started getting me thinking about 12.5" barrels along with recommendations from tom12.7 and such but uh, I have wondered what role access to ammunition like m855a1 may have played in favoring this barrel length. Or what institutional doctrine led to a line of reasoning. For example 12.5" over 10.5" using m855a1 probably is significant increase in MV not to mention reliability. But as a consumer I am wondering most about 11.5" vs 12.5", though this new Hodge barrel is making that decision pretty simple...
12.5" guns were being used long before M855A1 came about. I haven't had any accuracy issues out to 300 and 400 yards with M855 and M193. It improves quite a bit with heavier bullets like MK262, but it will definitely go minute of man at intermediate ranges. The biggest reason for 12.5 over 10.3 is the minimal drop in velocity from 14.5 to 12.5 and an appreciable gain in usability in confined spaces and inside buildings, without the drawbacks of reduced dwell time with 10.3 guns.
"We sleep soundly in our beds because rough men stand ready in the night to visit violence on those who would do us harm."
- George Orwell
Yeah, I know the 12.5" has been around for a while but the consumer market went head-over-heels for the 10.X" because of the MK18, even if it didn't make the most sense. Now the in-the-know convention on the consumer side is to go 11.5" and don't look back, but lately it seems 12.5" is getting more attention. I am wondering if others agree and what drives it. When a company like Hodge Defense, who is pushing the edges of innovation in the industry and who has some .mil connections, releases a 12.5" carbine gas 556 as their first commercially available barrel it gives me pause to consider what I might do. I am just a nobody with an AR obsession trying to piece together clues and read between the lines on what the best gear and configuration is for my intended build. I am not an operator and will hopefully never/probably never have to shoot faces but I still like my stuff wired tight and squared away though I don't want to just make decisions because of trend, even a .mil trend (e.g. mk18)
Your point about 12.5" being a good comprise between the 2 common military data points of 14.5" and 10.5" barrels certainly tracks.
Last edited by jerrysimons; 03-12-17 at 15:15.
I have two 10" , one 11.5", and a 12.5", all appropriately gassed. The 12.5 is nice for the increased velocity, but i almost never pick it over a 10 or 11 for suppressed usage, it is noticeably more nose heavy.
Eta:
If i could only have one sbr, i would go LW 10.5 or 11.5.
Last edited by dentron; 03-12-17 at 15:44.
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