Range Report  6GT Project/Range Report

tasty_chicken

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Aug 17, 2014
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Has anyone tried Reloader 15 yet? Varget is hard to come by these days and I still have a few lbs of RL15.
 

Birddog6424

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Apr 25, 2014
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Has anyone come up with a decent 115gr DTAC load yet? Decent velocity?

I havent landed on what bullet I wish to use yet. The 109gr Berger, the 110gr SMK, and the 115gr DTAC are all in the hunt. Im wanting something in the 2900 to 2950fps range. Not really wanting to run a 105gr at 3k.
 

mtnhunter22

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Jan 20, 2020
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Has anyone come up with a decent 115gr DTAC load yet? Decent velocity?

I havent landed on what bullet I wish to use yet. The 109gr Berger, the 110gr SMK, and the 115gr DTAC are all in the hunt. Im wanting something in the 2900 to 2950fps range. Not really wanting to run a 105gr at 3k.
I run DTACS at 2860 with 34gr varget. SD’s around 5-8. Hornady brass and CCI 450. Have plenty of room to push them faster but this is fine for me. Could also run 36.3 gr H4350 at 2820.

34.8 gr varget put me at 2900ish
 
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Birddog6424

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Apr 25, 2014
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I run DTACS at 2860 with 34gr varget. SD’s around 5-8. Hornady brass and CCI 450. Have plenty of room to push them faster but this is fine for me. Could also run 36.3 gr H4350 at 2820.

34.8 gr varget put me at 2900ish

Any actual nodes just over 2900fps that didn't feel like you were pushing pressure?

It seems like 2900 to 2950fps with heavier bullets ought to be the small advantage that the GT offers over the Dasher if people want to take advantage of it.
 

Kadams1563

Giver of Bad Advice
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Feb 13, 2017
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I dunno I’m thinking 105’s at 3000 is the way to go.

I’m currently running 108 eld’s at 2980 and Alpha brass shows a little pressure but it’s just ejector stamps.

a buddy runs 105’s at 3050 and has great luck with them.
 

mtnhunter22

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Jan 20, 2020
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Any actual nodes just over 2900fps that didn't feel like you were pushing pressure?

It seems like 2900 to 2950fps with heavier bullets ought to be the small advantage that the GT offers over the Dasher if people want to take advantage of it.
Varget gave me some pretty big nodes that I’d be fine shooting in. I think any of these charges would have shot well. This was my data. I didn’t find pressure until closer to 3000. Obviously yours may be different as you test.
 

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BoulderE89

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Jul 26, 2019
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A bullet I’m going to try out is the 115 gr RDF, I did a basic pressure test yesterday and going to do ladder testing next time I go out. I’ll let you know what numbers I’m getting there but at 36 gr of H4350 I was getting 2860 with an SD of 5 and at 36.5 gr I got 2916 with an SD of 8
 
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Dthomas3523

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  • Jan 31, 2018
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    109’s are the most consistent bullet I’ve ever run. Running them in 6br, dasher, 6x47. And have run them in 6gt as well.
     
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    drwood96

    Samsonite! I was way off!
    Minuteman
  • Sep 16, 2017
    672
    412
    Tuscaloosa, AL
    rolltide.com
    The Hornady Atips are the most consistent bullet I've ran. Across all my calibers.

    Yes, they are! Spent two days ROing at the Federal Gold Medal matching in Alabama and it opened my eyes on the A-tips. I could easily tell when a shooter was using them by trace in the wind plus the spark on the plate was awesome. They are truly a cheat code at times.

    That's one of those deals, where at that price, they damn well better be... ;)

    And they are! Lead core weight with near solid BC.
     
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    Darkside-Six

    My Dixie Wrecked
    Minuteman
  • Oct 8, 2013
    3,391
    808
    ATips are slightly better than 109’s but not better enough to justify double the price IMO. My first load I developed with the 6GT was with Atips and my load for the 109’s was the same charge weight and same speed. There was only .1 difference at 1K so I went with the 109’s at half the price. Have gone through 4 different lots and they’re very consistent.
     

    reubenski

    First Sergeant
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    Jun 8, 2008
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    Ha ha, I'm still using 105 Hybrids. I had 2500 from my last bulk Capstone purchase and when the following order came around the 109s just came out. I elected to stay with the 105's and ordered another 3 or 4K more. I use Hybrids in my BR and Dasher. My GT hasn't been a serious competition barrel for me yet and I was using the new, pointed 107SMKs in it. I bought 3500 of them from PV for $135 a box. And they have shot really well. I also had 940 110's from 2 or 3 years ago and just decided to give them a try with the long jumps. Turned out great. But then again I don't shy away from a little more work in the load development department.
     
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    Birddog6424

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    Apr 25, 2014
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    I dunno I’m thinking 105’s at 3000 is the way to go.

    And thats probably a good load. For me personally it doesn't give me anything over my 22BR. Running 88gr ELDMs at 3000fps over 28.5grs of Varget gives a 7.1 mil elevation at 1000 yards and 1.9 mils of wind in a full value 10mph crosser. The 105gr Hybrid is 7 mils elevation and the same 1.9 mils of wind.

    The 22BR is incredibly soft shooting and inexpensive to run. But I'm looking for a heavier bullet that will hold the wind a little better. So something 109gr and above in the GT is what I'm exploring. Ideally a DTAC at around 2950fps is what I wanted. If there's a good node in that velocity.
     
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    Birddog6424

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    For what it’s worth I’m sitting at 2900 with 105s over 36.5grs of h4350. 1000 is 8.1 wind 1.9 at 10 mph.

    I get 7.6 and 2.0 when I punch that in.

    I'm probably at a higher elevation. And I'm using a 9 o'clock wind with a right twist barrel. Not a 3 o'clock wind. There is some offset in spin drift between the two wind directions.
     
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    phlegethon

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  • Nov 4, 2018
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    at 3000 fps (which I'm skeptical is safe in a 6GT).
    Playing with numbers in GRT I’m getting about 62k psi for RL16 driving to 3000fps, and 65k with Varget. Probably best to go to a 6 Creedmoor for that.
     

    samb300

    Accuracy Obsession, Anarchy Outdoors
    Minuteman
  • Feb 22, 2013
    2,020
    3,426
    Milwaukee, WI
    not wrong samb300... come here and shoot it
    I’ve shot A-Tips at 2840fps out to 1350 and can assure you those numbers make no sense.

    If I take 2940 fps and crank the DA up to 13,000 ft it brings the windage needed way down, but also drops the elevation needed way down to 6.2 mils as well. Can’t have 7.0 mils of elevation and 1.2 mils of wind unless your calculator has the wrong wind, or some crazy coriolis and aerodynamic jump.
     

    Birddog6424

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    Apr 25, 2014
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    K-wal

    Private
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    Oct 23, 2019
    20
    5
    I'm now 120 rounds into my 6GT.
    I shot 100 rounds of 33.5gr Varget, new Hornady brass, and Winchester primer. Tested the 108 ELD, 112 match burner, and 109 hybrid. The hybrids shoot the best with the Hornady ELDs coming in a close 2nd. I can't get the 112s to shoot better than .75 moa.
    I ran 20 rounds over a chrono today for OCW testing. I am not quite getting the velocity I want yet, but maybe the barrel will speed up a bit more?
    The best load of the day was:
    34.3gr Varget, Berger 109, and WSR. 2898, SD of 2, and maybe .25 moa at its largest.
     

    pkt1199

    Sergeant of the Hide
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    Mar 21, 2012
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    I'm now 120 rounds into my 6GT.
    I shot 100 rounds of 33.5gr Varget, new Hornady brass, and Winchester primer. Tested the 108 ELD, 112 match burner, and 109 hybrid. The hybrids shoot the best with the Hornady ELDs coming in a close 2nd. I can't get the 112s to shoot better than .75 moa.
    I ran 20 rounds over a chrono today for OCW testing. I am not quite getting the velocity I want yet, but maybe the barrel will speed up a bit more?
    The best load of the day was:
    34.3gr Varget, Berger 109, and WSR. 2898, SD of 2, and maybe .25 moa at its largest.
    Speed doesn't seem bad, you may be able to squeeze a little more out but probably not far from roughing up your brass.

    At least for me that was the case. I'm running 108s at around 2925-2930 (up maybe 15fps from where it was with previous lot of varget, 34.1gr), had a great node a few tenths of powder higher but it was starting to be a little harder on the brass and not really worth the fps gain IMO.
     
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    K-wal

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    Oct 23, 2019
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    Speed doesn't seem bad, you may be able to squeeze a little more out but probably not far from roughing up your brass.

    Yeah. I'm happy with what I have, but I was expecting a bit more velocity. Primers have a bit of cratering, but that has been present on every round and didn't get any worse at 34.5. The brass itself looks fine.
     

    Birddog6424

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    Apr 25, 2014
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    I've had two friends now who couldn't get the Matchburners to shoot.

    One of them was offered a Barnes Sponsorship and given a bunch of them. He made a lot of attempts to get them to shoot and couldn't. He ended up declining the sponsor.

    My friend I shoot with a lot bought a bunch because they were cheap. But anything over 3000fps in his Creedmoor and the jackets fail. Thats in a 7.5" twist. He's shooting them at a very pedestrian 2950fps just so they get to tje target. It's his back up rifle, so he's just going to shoot them up and move on.
     

    Juggerxxx

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    Feb 13, 2017
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    112 Barnes would not shoot in my 6GT. 108ELDs have been great so far but I have a lot 109 Berger’s to test in the next week or two.
     
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    Virginia Shooter

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    May 15, 2020
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    Resurrecting an older but, very interesting thread. I am curious what people are seeing for their fired case water capacity and what trim length you are using.
    My rifle (Defiant action/Bartlein 26"/MPA chassis) is shooting very well at slower speeds where I can also see my trace much of the time. Another benefit is very low recoil. I am using Varget at 32.2 grains, Sierra 107's (wish I could find Berger 105's) seated 0.065" off the lands and CCi450 primers. Groups have been decent. My new Alpha brass only has 44.5 grains of water and 1x fired jumped up to 45.15. I am having to push the new brass back 0.002 because the chamber is tight at 1.370 and that is the shoulder length of the new Alpha brass. Some rounds were tight on bolt close before I corrected by pushing the shoulders back. I have been using a trim length of 1.719 so that I can get the brass uniform in length. Loaded rounds are 1.901 ogive/2.475 coal.
    I shot a few rounds today to confirm zero and to check the point of impact at 500 yards. Some might think 0.065 off is a lot but, after reading the series of articles on Precision Rifle blog about seating depth I am a believer. I am consistently getting less than an inch of vertical at 500 but, have not been able to test out further (max is 500 at the range I belong).
     

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    SouthFLShootin

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    Jan 8, 2019
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    Resurrecting an older but, very interesting thread....


    Trim 1.715 after first firing. Never trim it again. I use 105 hybrids and 109 hybrids with hornady brass. Both use 4350, 35.7gr and 36.0 gr respectively. Soft load in the low/mid 2800s for both bullets. Same as you, super accurate and very low recoil, and brass lasts 10 or more reloads. I run barrel tunners and set my bullets at .020 for the 105s and .050 for the 109s, and I never change seating depths again. SDs generally under 6. Case capacity of 44.6 after being fired a couple times. Your jump numbers dont seem crazy at all to me, and pushing the shoulder back .002 should be standard practice for PRS type shooting IMO. I also use the Berger 108 gr Elite Hunter loaded without even touching the die from my 109 load, and use 37gr RL16 to push it 2980s. Works very well on hogs and other similar sized game. Very accurate too.

    Don't get me wrong, I understand the ballistics and velocity argument and the hit percentages ect. But consistency and ease of use is where I am at. I have a barrel now with 2600+ rounds on it and I just shot it in a match last weekend and placed very well. If the monkey behind the trigger was any better, there wouldn't be anything holding that barrel and load combo back from winning the match.

    I'm simple. I like shooting. Reloading and load development? Not so much.
     

    JBarton

    Sergeant of the Hide
    Minuteman
    Jun 1, 2020
    338
    197
    Wyoming
    So I'm going to jump on the 6GT. Purchased alpha brass and probably going to put money on an MPA within the next week or so. I'm going to start trying to buy components so when I do get my rifle and optic I will be able to play. Hopefully.
    Any recommendations on a die set.
     

    Tyler.I

    Private
    Minuteman
    Jul 11, 2018
    17
    10
    So I'm going to jump on the 6GT. Purchased alpha brass and probably going to put money on an MPA within the next week or so. I'm going to start trying to buy components so when I do get my rifle and optic I will be able to play. Hopefully.
    Any recommendations on a die set.
    I have only used the RCBS MatchMaster dies but they have been phenomenal for me. Would definitely recommend them to anyone based on my results.
     

    reubenski

    First Sergeant
    Minuteman
    Jun 8, 2008
    4,506
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    Colorado Springs, CO
    The Hornady dies from GAP have produced very good ammo for me. Normally I like a honed FL or bushing die but this time I just went with a simple die set because the other options were so pricey. And I haven't been disappointed.
     
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