KRG TRG / SOTIC barrels & nut experience wanted

jbell

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Jan 16, 2010
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Lewiston, ME
I am back shooting a TRG after too long of a hiatus, I simply missed the rifle. That being said I am not new to the TRG or having it re-barreled. I have had a few custom barrels spun up for my TRG's in the past all with excellent results. The main reason for me leaving the TRG platform (for an AIAT) is the ability to be able to order a new barrel / caliber with no wait time and change it in seconds at home or on the range.

I purchased my TRG with the full intent to have APA install a 6.5X47 barrel on it as opposed to the factory 308 barrel. However with the KRG barrel and nut system offered for the TRG & SOTIC (I almost bought a SOTIC as opposed to the TRG...) I am thinking about giving that a go. I will probably end up having to pay a gunsmith to either remove so I can re-use or cut off my factory barrel & I am ok with that. But going forward I would like to be able to use the KRG system.

With all that said I would appreciate any real world first hand experience with the KRG barrels and nuts on either a TRG or a SOTIC platform. I have a few specific questions:

-How is the accuracy & velocity looking on these barrels?
-How repeatable is the POI from barrel on to barrel off? **How are you installing it, meaning what are you torqueing the barrel nut to & how are you setting headspace each time?
-How is the machining of these barrels: thread quality, crown quality, chamber tolerances, etc...?
-Will the contours offered from KRG work with the TRG and the TRG bipod (if the barrel is too large in OD it will hit the bipod, and honestly the TRG bipod is the main reason for me going back to the TRG)?
-Any thoughts in addition to the above or any issues found?

I have read the KRG SOTIC thread front to rear and there is some good information in there but the few accuracy reports I have seen are honestly not overly impressive. But there are a lot of variables that go into that equation.

Thank you in advance for any info!
 

skatz11

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I’m getting ready to try the KRG barrel nut system on my TRG. It’s sitting on my bench next to a beautiful SAC barrel vise that I got for Christmas.

I’ve been reluctant to pull my factory 260 barrel because it’s still shooting pretty well, but I’m getting close to 3,000 rounds on it.

I’m curious to hear some feedback from anyone else who’s done it too!
 

supratt96

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Dec 22, 2010
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It'a hard to say if the KRG barrel nut system is as accurate as a standard shouldered barrel. My TRG was a little more accurate when it had the factory 260 Rem barrel, but since having it rebarreled, not so much. The sotic outshoots it pretty easily. The difference may be that I mostly shot my TRG with Lapua brass and Lapua 139 Scenars. So far, I have only used Hornady brass and bullets in my KRG. I suspect that using the higher quality Lapua reloading components would close the gap. I will give this a try soon.
 

jzwolen

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While i've never shot a TRG or Sotic, this sounds more like the age-old 'Shouldered vs. barrel nut' arguement.
 

Massoud

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www.krg-ops.com
A couple questions I can answer, I'll let others talk about their experience. We use only "best" quality barrels, Currently if I remember we have Krieger, Chanlynn, and maybe some Broughtons left for 6.5CM. We get reamers from JGS and our 'smith dials them in to a max runout of .0002 to chamber. That's basically the recipe used by whatever top 'smith you are thinking of.

The contour is a TRG contour basically. Obviously ours has the long tenon thread and no shoulder so there is a slight difference at the chamber end.

For accuracy, I can't see how you're going to do better really. It's easy to get caught up in little things thinking they are big things, then you pull the action out of a tight shooting TRG and see that the bedding area isn't even machined, it's just the raw extruded surface (at least on the older ones)!

Someday I'd like to do or see a real scientific test between a barrel nut system and shouldered barrel torqued to huge values like the TRG and like Tac Ops does them. That would be a bear to setup though to have actual valid results.

Justin
 

jbell

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Right on Justin, thank you for the info! I appreciate it!

Do you guys offer, or would you do a different caliber than the ones you have on your website? I would rather have a 6.5X47L...