BigFiveJack,

There is also the early "wildcat" the 600-577 Rewa, made for an Indian maharaja firing a 577 bulet out of a 600 NE case at higher velocities than both.

Those who would like to have a little bit of both could order one - theya re being built again these days by Holland and Holland and Hartman und Weiss.

I hope 577 Robert would post here - he has two 600-577 Rewas, a double rifle by Holland and Holland and a Hagn single shot.

Cheers!