Add one more to the list. I own a Heym .470 NE, and I think that it is the best double available today under $35,000. I also agree with the above posts, that if recoil is a factor, the 450/400 is the ideal gun for you. Rifles in this caliber usually come in trim, light, fast handling packages that will kill anything that walks. The recoil is about on par with 375 H&H. If the romance of old Africa is what drives you, take heart in the knowledge that this was once one of the most popular chamberings on the continent.

Geronimo