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6gt reamer

Just my opinion, the 6GT is a tweener that doesn't seem to be very good at anything. It only has one source of brass. And that source could dry up at any moment. I'm pretty sure you could soft shoot the 6XC and it would smoke the 6gt and the 6XC will literally feed out of anything made for a 308.
I've never loaded a 6 xc but other than BR based cartridges the 6 GT is the easiest cartridge I've ever loaded for. In load development at 150 or 200 yards it rarely shot anything over .5 MOA, wide nodes around .3 MOA were the norm without any real tuning outside of powder and seating, no neck tension test, no primer test, no checking different bullets etc. I found myself picking charge weights and seating depths off shape and POI more than size because the nodes were so wide and forgiving.

For you to say "it's doesn't seem to be very good at anything" makes me wonder if you've even tried one? Then you say "you could soft shoot the 6xc and it would smoke the 6 GT" and I wonder what you're using for a yardstick?

I don't pretend to speak for Tom or George and have no experience with the xc so I have no opinions on it but I don't really believe the two cartridges were designed with the same goals in mind but that's just my opinion.
 
A better question would be, what did it fix?
This thread is starting to sound like the 6.5 Creedmoor / 260 Rem / 6.5x47L saga now. Its almost refreshing because that one was getting frickin' old.

For all I know you may be right and the GT may fall by the wayside like others that have been tried but nothing gets better if new things aren't tried so I'm going to try some new things along the way.
 
My personal opinion, it feeds better than most 6br variants, easy to tune, and has a lot better barrel life than the 243, 6xc, and 6 creedmoor. I’m over 2,000 rounds down mine and 9/10 times it will still agg under 3.5in @600 feeding out of the magazine, off of an atlas bipod.

I'm sure it's fine.

I was mostly just curious why suddenly everyone was talking about it. I think the following is very small, and suddenly it's everywhere. I suspected that maybe Eric Cortina or some other "influencer" was talking it up somewhere.
 
I suspected that maybe Eric Cortina or some other "influencer" was talking it up somewhere.
Now if Eric was shooting PRS. He'd yack it up but his world is
different. The 6gt is in the PRS arena. I know a few converts that
started last year with new rifles being built for the PRS wars. I'm
prone to stay with my 7mm wild cats, but the 6gt peaked my
interest by looking at the long neck Dasher. The whole concept
of taking the 6br and increasing its capacity and shoulder dimensions
such as bra, brx, dasher, and the like, The 6gt should have been named
something different. A couple of the Tack Driver boys started to play
with it. These guy's don't like to give anything up, and they are the
tops in their class !!. Which reminds me with the wild catting in my
blood, Maybe I'll split the difference between the Dasher and the GT
and call it the "Thrasher" !!.....It's all about the pursuit of optimization.
Let the haters hate.....
 
I'm sure it's fine.

I was mostly just curious why suddenly everyone was talking about it. I think the following is very small, and suddenly it's everywhere. I suspected that maybe Eric Cortina or some other "influencer" was talking it up somewhere.

UR has done some builds... and it's a great round... it's been out for a ~3 years now... I think it's just picking up some steam.
 
UR has done some builds... and it's a great round... it's been out for a ~3 years now... I think it's just picking up some steam.

Like I said, to me it seems to be a tweener. It seems it would be too short to perform ultra reliably in a typical Rem 700 type action (I admit I have not tested it). So, a lot of the issues that come with the 6br based cartridges.... Which require special mags. Kind of like the Dasher and 6bra.

If the 6GT has the same length neck as the 6Br and 6xc which is 300 thou, I would suggest 160 for the free bore. That is the number that I settled on which is the number that Tubb uses for his 6xc with the DTAC. And I found it works perfectly with the 100 something grainers also. The further from the donut you can get the better and any free bore is just free case capacity.

If someone were going to shoot the DTAC exclusively I would suggest a free bore over 200 maybe like 220.
 
I have two. One in a mag fed PRS style gun, one is an F-Open Bat M. The mag fed gun works great. Gardner designed it to be a mag feeder. This is with 105's. The .120 freebore is perfect.
 
Like I said, to me it seems to be a tweener. It seems it would be too short to perform ultra reliably in a typical Rem 700 type action (I admit I have not tested it). So, a lot of the issues that come with the 6br based cartridges.... Which require special mags. Kind of like the Dasher and 6bra.

If the 6GT has the same length neck as the 6Br and 6xc which is 300 thou, I would suggest 160 for the free bore. That is the number that I settled on which is the number that Tubb uses for his 6xc with the DTAC. And I found it works perfectly with the 100 something grainers also. The further from the donut you can get the better and any free bore is just free case capacity.

If someone were going to shoot the DTAC exclusively I would suggest a free bore over 200 maybe like 220.
You keep referring to case capacity which infers more velocity in my mind and that's fine if that's the yardstick but
I believe a lot of the PRS shooters are running the heavy 6mm rounds down <2900 even <2850 so case capacity and higher velocity is not really the goal in that case and while those speeds are easily achieved in the 6br there is no denying a longer GT has to feed better than a BR based case and have a better powder fill ratio over the xc if a person is running the low velocities.
I'm pretty sure the GT was never designed to best the XC in velocity and case capacity but was designed to run more moderate velocities on a lesser volume of powder while feeding better than the BR based cartridges. From my experience with mine I'd say those goals were met.

The GT still has the capacity to run a 103- 105 easily up past dasher speeds as well if that's what a person is trying to do. There was one I know of on the 1000 yd line at Deep Creek last season that did more than just ok. Well enough I think I'll have a barrel for one of my bench guns next season to try based on that and my own experience with mine.
 
The other thing to consider going to it's length would be getting
to use the slower powders in the range of H-4350 and Reloder 16
with the long throat heavies in them long tubes.
 
The other thing to consider going to it's length would be getting
to use the slower powders in the range of H-4350 and Reloder 16
with the long throat heavies in them long tubes.
Exactly!!! I'm running h4350 in mine and at some point plan to test h4831sc and see if it can get up in the mid 2800s before I'm crunching powder.
 
Exactly!!! I'm running h4350 in mine and at some point plan to test h4831sc and see if it can get up in the mid 2800s before I'm crunching powder.
It's the only ball powder I would ever consider to keep in my
magazine, and have used it in several short cats with good results.
Get a lb,, of Ramshot Hunter to test. Ethan may have his build
done for the PRS and Ridgway steel events. I'll give him a pound
to test with those 115 Dtacs, I came across for him......Ramshot
hunter falls in between R-19 and H-4831 with better fills, and a
LR magnum primer is not needed. However in the small primer
area, a magnum primer may be a good thing. Test, Test, Test......
 
I don't know for sure why I'm attracted to the GT, have had numerous Dashers & XCs for several years - built my 1st Dasher in 2004. When Lapua BR brass was easy to find & reasonably priced, I didn't really mind fireforming, and could use FF ammo in mid-range matches without giving up much accuracy. Guess I'm just tired of fighting the whole supply chain & high-priced brass mess - which is probably 90% of the reason I haven't already built a 6GT for myself.
 
@DHuffman
I have used a metric ton of RL16 in my midrange F-class rig (dasher) and have won a few 1000 yard matches with it also. It’s a bit bulky, but steady across large temp swings. ~35.0 gr on a dasher with 103-108 gr bullets was the cats pajamas.
How much 16 or 23 can you get in a Tiger without a long drop tube? In my dashers, with a slow pour and a long drop tube I could reach the higher node (3080-3100) in my .155FB chambers.
CW
 

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