CyberVirus,
I shoot a .376 Steyr in their ProHunter model, and I have been impressed with the lower recoil of this cartridge compared to my .375 H&H rifles. You ought to take a look at it.
There have been WSM-like wildcats that preceeded the WSM cartridges, and they went up to .458". Jim Busha designed two lines of such on cases of slightly different length.
His .375 Heavy Express Short-Action Magnum would do 2,600 fps with a 300 grain bullet; his .375 Heavy Express Magnum would do over 2,800 fps also with the 300 grain bullet.
jim
