Nice build.
I built mine back in 2011, 24"bbl, 1/10" twist for coyote/antelope out here, been a great rig to 700 yards.
You should get the 60s at least 3000 fps. I run a 58g VM at 3200 fps and the 70g NBT at 3011 fps.
My 95g antelope load runs at 2500 fps & 85g loads at 2700.
That rig would be good for p-dogs easy.