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Discussion in 'Long Range Hunting & Shooting' started by Joefrazell, Aug 11, 2019.
What cal. A bolt are you shooting. I have one in 7mm stw and i really like it.
I wouldn't be that surprised with the groups. some barrels just like a certain powder charge more than others. how many rounds are on the barrel? I wouldn't get too excited until you're 150-200 rds into the gun. You might try the 70.5 and then .2gr on either side to see if it changes. just gotta find that sweet spot, no matter how narrow.
The barrel has right around 70 rnds down it so far.
In my tikka I seat to longest I can squeeze into mag with 200 eldx and hs4831sc at 72.9. Center of node. .5-.75” at 100 all day. Getting 2925fps
Is that a 24" barrel?
I think stock tikkas are 24.5
I do know with 300wm they go with 11 twist which kinda sucks (really sucks)
Yeah they kinda went it the wrong direction with that twist
That one group between the two small groups could be shooter error? I would reshoot 71gr group
All the groups felt great but it's always a possibility
I'm hoping you find when you 're-test' that the groups are still great and you find 'the' load for your gun and this bullet.
Rounding up slightly
I have a Browing A-bolt SS with the 26" BOSS barrel. I am limited by the magazine which I have modified slightly with a file to lengthen the max coal. I am shooting 73.1 grains of H4831 with CCI 250 primers and Nosler brass. It's at 0.383" at 100 yds and just over an inch at 300 with 3 shots. Not the fastest load I can achieve but with the accuracy I am very happy with it. 2977 fps avg. I think it is a pretty toasty load for H4831 and wouldn't go much higher with my rifle. I'm sure Alliant powders 23 and 26 can beat that velocity by another 50 to 75 fps but I'm more than happy with what it's doing now with the Hodgdon. Good luck!
I used H1000 at 74.0 and the Hornady ELD-X 200 grain loaded to SAMMI length and that has proven to be a very accurate load for me.
I've loaded up a few more rnds and will get out soon and check the data. Im shooting 70.5, 71.5 and 71.7. We will see how it goes