After reading all the way through this thread, I have concluded that I own one LH rifle which appears to be truly unique: A Ruger Hawkeye, originally in 7mm Remington Magnum, now rebored and rechambered to .358 Norma Magnum. Sort of a modern day version of my .350 Rigby Magnum.

I have yet to hunt with it, but I am satisfied that it will do anything the .35 Whelen can do, and more. Almost in the class of my .350 G&H Magnum.