If you can figure out what Winchester loads their Super-X 300gr JHP's with, you might be nicely surprised. They claim 1880fps in muzzle velocity, could be more/could be less give individual rounds and rifle.
My hand shot hole-in-ones and ragged holes at 50 yards with that ammo and factory open sites. ..not just for me, but both my dad and uncle.
As soon as I get my loading station back together from moving, I'm pulling a slug out of a Super-X round, figuring out what powder it is and weighting it.