Dave,
I'll guess if you use a long action, and seat bullets out a ways, 2000-2100 fps might be doable.
I have thought about the same thing. Or maybe a 338-06 with the 300grMK in mind. I've guesstimated the 338-06 could move the 300grMK around 2200fps from a 24-26" pipe.
Not impressive velocities, but considering the bullet mass and outstanding BC, it should carry plenty of power to 1000 yards.
I would be very interested in your results if you do this.
MM