Before the .300 WSM hit the market Heavy Express was selling two .358 cartridges on cases of the same size as the WSM (developed from .348 brass converted to rimless and using 40 degree shoulders).
The .350 Heavy Express was a 2.25" case and their data for a 24" barrel showed 200 gr/3,050 fps; 225 gr/2,950 fps; and 250 gr/2,860 fps.
The .350 Heavy Express Short Action Magnum was a 2.060" case and their data again for a 24" barrel showed 200 gr/3,000 fps; 225 ge/2,910 fps; and 250 gr/2,785 fps.
I asked Ruger/Hornady to consider a 6.5 RCM, so I will have to check at SHOT to see if there is any glimmer.
jim
