Maybe it's just the combination I'm running or as Dusty says, maybe a Dud barrel, I'll try some Sierra 107's, if they don't shoot nothing will.
Try 44 to 44.5 grains of h4831sc
Maybe it's just the combination I'm running or as Dusty says, maybe a Dud barrel, I'll try some Sierra 107's, if they don't shoot nothing will.
Thanks. this was my pet load/powder for my first XC, this now runs at 3100fps in this 3 groove barrel.Try 44 to 44.5 grains of h4831sc
I wish I had that.I was shooting DTAC 115 RBTs just yesterday through my 1:8 28 inch Krieger. Shooting prone off a bipod and crappy rear bag I was easily shooting .3inch groups at 100yds. I usually shoot in the .2s off a bench with a high dollar front rest and great rear bag. The weather was crappy yesterday. Hot and extremely humid. 40.0g H4350 with MV 2995. Ten shot sample group SD was 2 which is the best ammo I have ever loaded. I'll stick with the DTACs![]()
Your time and frustration is worth something. A barrel is expensive but not really when compared to the components and time put into shooting it.I tried the Sierra 107's today, same result different day but worse. maybe I'll screw the barrel out.
Thanks everyone, I'm done with it. Nearly 300 rounds since new for load development and testing powder and bullets and i'm no further advanced.I think you got the wrong twist.
Thanks everyone, I'm done with it. Nearly 300 rounds since new for load development and testing powder and bullets and i'm no further advanced.
Maybe a Dasher might do better.
The barrel has been removed, apparently the 3 groove is VERY difficult to get running according to the barrel maker.I would try and reach out to “shootdots” on this site as he has a lot of experience with the 6/6.5 cartridges. He will probably be able to help you out!
Well the barrel has been removed and sent back to the maker, it appears it may have some steel imperfections in the bore. enough said I have a warranty replacement 1-7.75T same my first XC. a fresh start with all my go to loads for the XC.I'm 1 for 4 with a dtac. It's a long, heavy bullet that by no means looks temperamental. 2 of the failures to get it shooting I did all that I know how to do. This last attempt, I pulled the barrel scratching my head, it would not shoot at 100, or 500 yards. One day testing, nothing looked good at 500, so I shoot 4 different charges at 750 so I do not have to pull the bullets, and it shot a fantastic group. < Right there was my mistake, because it caused me to keep trying.
In my experience, you throat a barrel specifically for a dtac, good luck shooting a more streamlined bullet.
Well the barrel has been removed and sent back to the maker, it appears it may have some steel imperfections in the bore. enough said I have a warranty replacement 1-7.75T same my first XC. a fresh start with all my go to loads for the XC.
Just to follow up on this... new barrel just shoots with all my pet loads right from new. So it was the barrel.I think you got the wrong twist.
Glad to see it all came together for you......When you get a few $ ahead consider a Hawkeye borescope. They pay for themselves over time. Like inspecting new barrels before chambering etc......Well the barrel has been removed and sent back to the maker, it appears it may have some steel imperfections in the bore. enough said I have a warranty replacement 1-7.75T same my first XC. a fresh start with all my go to loads for the XC.
Slightly off topic, but there is a Litz paper: Understanding Long Range Bullets or something like that on the applied ballistics website that talks about how the destabilizing effects (velocity) on the bullet are going away faster than the stabilizing ones (rotation), a.k.a Sg increases as the bullet proceeds downrange. This is all fun theory though, because the reality is that if it groups poorly at 100, it won't group appreciably better at 600 or 1000. Wind and everything else will just start to cover up the lack of raw precision.