Winchester figured out the whole cartridge arena and exactly what hunters need.........22 Hornet, .220 Swift, .243 Win., .250 Savage (.250-3000), .257 Roberts, .264 Win. Mag., .270 Win., 7x57mm Mauser, .300 Savage, .300 H&H, .300 Win. Mag., .30-06, .308 Win., .338 Win. Mag., .35 Rem., .358 Win., .375 H&H, and .458 Win. Mag......

At least that was the 18 original chamberings for the Pre '64 Model 70's. They should have quit while they were ahead.

As for Ruger, even the guys in Africa think the 375 Ruger is a joke. When Westley & Richards start carrying short mags, I'll be convinced.
How about this "want short mag power, with one extra round?? buy hornadys lightmags same 270, just a bit faster"

Ever wonder why you see so many on the used rack??