This is an old thread, but I'd like to add that my current load is a 200 gr Hornady spire-point over a modest load of IMR 3031 for a velocity of 2700 fps-ish by the manual. Since I'm shooting hogs over feeders at 60-90 yards, there's no need for any more speed. The .350 RM / M673 combination is a great real world hunting set up.
I totally agree with this assessment. The neat thing about 35 calibers in general is that there is no real need for demon speed (I'm a poet at heart). The combination of the Speer 220 gr bullet and sedate speeds have worked very well for me thus far.
