I've had excellent results with the Speer 250 Hot-Cors in my Whelen on Elk (mostly Cows, nothing Really big) It's been a long time since I chronoed the load, but if my memory is correct it's around 2500fps.

I'm sure I used some Hornadys and some sierras as well, but the 250 speers are what I used last and can remember the most.