260shooter
FNG
- Joined
- Nov 26, 2023
- Messages
- 57
You should see 3150-3200 with the 140"s.Awesome!! I’d go 22”. Extra 50-60fps to ensure your goal and you won’t notice it in the field.
I see most people were shooting H1000 in the info you got. I think a 156 would create an enough pressure that you could use N570 and be right near a full case. In all the cases I've tested, if you can fit a full charge of N570 it produces about 100fps faster velocities than H1000. I don't really like N570 in the bigger cartridges paired with small bores. BUT if velocity is the main goal, it normally shoots great, has low ES and absolutely gives you velocity.
I just bought a 21” 6.5-7PRC. I was just going to shoot 140 hybrids to try and keep the speeds up with H1000 or N565
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