Yes- WOW - and at 7 pounds, is exceptionally light for a 3" or 3 1/4" .500.

I would think something along the line of a .50/70 (.50 1 3/4") at that weight would be more controllable.

Second thought, might not be THAT bad with a 300gr. I was thinking of my old .50 3 1/4" sharps with 140gr. 2F or 170gr. ICI 1F and a 550gr. bullet. It was rather nasty with both of those, even though over 10 pounds.

Yes, and like that lovely little .500 BPE, a steel butt plate.