Hell, get a mold cut and load it up wid BP and use it!
well...you might be the first person to ever do that
I have a .375 which has a lovely salt wood stock
assuming I ever get it stabilized, I might just have it rebored to .416. It has the C weight barrel and that would leave the weight around 8-8½ lbs w/o scope, which I think would be very fine.
I'll edit to add, the .450/400 can use .41 mag pistol bullets, as can the .405 Winchester