THAT is a GREAT picture.

I sold my .50 3 1/4" due to too heavy recoil with the 170gr.F Meteor powder and 700gr. Bullets.
That narrow butt plate dug in, but the rifle REALLY liked the load.
The guy who ended up with it, used 101gr. AA3100 behind a 500gr. Cast for just over 2,000fps. This load was deemed suitable for those Shiloh Actions, by Accurate Arms, back in the 80's.
He was a wee bit more impervious to recoil than I was.