6gt
- Thread starter Dthomas3523
- Start date
let us know how you did , and how your barrel preformed . GOOD LUCKIt's a 26" War Heavy profile from Hawk Hill, 7.5" twist. Freebore is .120"
This is the .237" bore.
Like I said, why it won't shoot is a head scratcher. If I scrubbed the Bergers shot great. As soon as the barrel got dirty they would go to hell. As in <50 rounds. Can't even get through a match with them.
Shooting a Regional PRS Qualifier match today. Sitting here typing this up before heading out to check zero. Weatherman is calling for 15 to 25mph winds today. Should be a little sporty..
I'll check my DTAC load after the match and see how its held up.
khuber84
I know Erik Cortina uses a a .236” bore Brux barrel and Berger bullets so that combination will work. But maybe the Krieger is a little tighter yet? Instead of trashing the barrel maybe strip it to bare metal and run some fire lap bullets through it to see if it might loosen it up a tad and make it usable for you?
Last edited:
Maybe that barrel like a dirty bore? What happens if you develop the load when it’s got a fouled bore? Say you have 50-75 rounds down the barrel and then start your load development and testing?
Were the first 400 the same lot of Berger bullets? If so then there must be something else that changed no?
Awesome. So what load and CTBO are ya using?Well the match was a fifth of cheap tequila and an asswhippin'
18 to 29mph winds all day in the lovely Great Basin desert region of southwest Idaho. By the third stage, actions were locking up from the dirt and magazines stopped feeding. It was a wonderful....... learning experience...
The rifle was great though. The MD pulled in the long range steel when the weather man said we had a tsunami inbound,, so 908 was the longest shot. I got it both shots with a 3.6 mil wind hold (24mph wind). On the last stage I impacted a 2.5" squirrel at 295 yards with both shots,, and 4" gopher at 395 yards using a 21mph wind hold. So sub moa and moa targets in a ridiculous wind,, I'll take that. The 5 round chrono after the match showed a 3.3 SD. So I think I'm finally moving forward with the rifle.
Just gotta figure out how to make those magazines run in a dustbowl...
And now I need to find some fargin' DTACs...
My barrel is coming from Straight Jacket Armory and they said 120 will work fine with DTACs. I don’t think they would say that if it didn’t, they have the 170 FB reamer as well.
Well that is a bummer. I always try have some DTACs on hand as I’ve had great results with them. I’ll plan on using 105 Hybrids and 109 LRHT with this news.
I could not get any good results from 109s til i put them out 60-80 thousandths. As soon as I did my Sd/Es went way down and group size as well. How far out were you?
Yup. I start right off the bat at 60 off and work out from there. Have found the best groups for me personally around 80-100 off.
Seems to be right in line with SAC's findings with the 105
I'm going to start to load up some 6GT and most of the loads posted are using magnum primers which I don't have. I do have plenty of small rifle, are the magnums really needed? Anyone have data for small rifle primers? I may have some Winchester magnums laying around I'll have to hunt a little harder. Were there ignition problems with small?
You will be absolutely fine using small rifle non-magnum primers. Many people have great success doing so and I am one of them. 2300 rounds down a barrel with nothing but cci400 and I have shot matches in 20 degree temps without issue. Very accurate and nice and low SDs.
Altus has Alpha brass in stock
www.altusshooting.com
Alpha Munitions 6GT SRP Brass (OCD)
Alpha Munitions 6 Dasher brass has been used some of the best shooters in both the PRS & NRL to place amongst the top of the leaderboards. At Alpha Munitions
www.altusshooting.com
Usually 200~ish. More for a train up. I took 250 to Peterson last month. But I just checked zero and confirmed DOPE right at close on Friday before match.
Ok 250 ish to be safe . Thank GOD I just ordered 200 more , that makes 600 alpha brass for me and my son . 300 each . Plus Another 250 from hornady ,that we have as spare ,in case we ever need them .
I’m sure you know the load may be a bit different between the brands. So if you use the Hornady on Friday train ups, you may have different dope on Saturday and Sunday. Just keep that in mind. Aim small and miss small! Have fun. I’m guessing it’s your first 2-day.
Anyone running IMR4166? I have 16lbs and am about to spin a barrel up. I was going to go with BRA but now I’m leaning towards the GT with the DTACs I have.
Is 4166 truly that close to Varget in charge weight?
Is 4166 truly that close to Varget in charge weight?
If you do run the 4166 ,please post your results ,would like to see them . Me on the other hand just got my 6gt barrel installed yesterday . So about to start a load ,with varget , then with h5350
I’m on same route. I have a few lbs of varget and h4350 but am always interested in new powders.
Dude in the 6GT FB group ran some 4166 (https://www.facebook.com/groups/780746612323086/permalink/1339804299750645) and got some reasonable results. 3059 avg fps / 3.6SD and printed pretty nice on paper.
Spinning up a 6GT next week myself so watching these with interest as I, like others, have a limited supply of Varget.
I'm not running 4166.
But, according to the Hodgdon website, starting charge weight for 4166 is 29.5 grains
Starting weight for Varget is 30.6 grains
They both show a max charge weight of 34 grains.
This info is for a 107g bullet.
In my BR with 105s it was pretty close. It think I used a touch more 4166. It gave good speed and accuracy, but I did a complete work up and not just throw a Varget load at it and hope it worked.
we started our load today and we are at 33 grains of varget , we are in the mis 2800's with mt 28"proof. we are staying at that speed .
This is great to hear, Brian is shipping me my GT build as I write this , I also went with the A-Team Mullerworks barrel, also went with Impact action!
Just got my 26” 7.5 6GT barrel from GAP. All I have is SW Precision and H4350 with 105 hybrid and cci450. Couldn’t find any solid data on here, can anyone that’s using similar, provide me with a good starting charge? Thanks.
You should be safe treating SW Precision as a 1:1 replacement for Varget, just work up from a light load because you may get a little more pressure (maybe not too).
