My late friend Will T. had a 3 1/4" .500 that had gold script in the center rib stating, "MADE FOR MAHARAJA (the name)".
It was quite a rifle and made 2 1/2" groups for me, off a normal bench, hand held, resting the back of my left hand on a bag, at 100yards shooting, back in the late 1970's. 2shots from ea. bl. iirc.
340gr. cast bullet IIRC, it was the Gould mould, with the hollow point plunger cut to make a solid bullet.