I have a Remington 700P LTR and a Bushmaster Varminter, both with 1 in 9 twist. Both are 1/2 MOA rifles. The Remington will shoot 1/4 MOA when I'm having a good day. They both like 45 and 50 gr. HPs and are devastating on prarie pooches. The 45 gr. pills are pushed at 3400 fps.
With the 1 in 9 I can still shoot up to 68 gr. rounds under one MOA. I doubt the 1-10 would shoot the heavier bullets that well but have no experience with 1-10 barrels. YMMV.