Round balls, especially those .50 caliber and larger, perform much better than their listed foot pounds of energy would indicate.

i've killed a few deer and a dozen or so wild hogs with .50 caliber and .54 caliber guns firing patched round balls. Most died within 20 yards of being hit. One deer went 80-100 yards: Good exit wound from the .530 round ball.

I cant see the picture.
My email is active here and i am willing to help as i have a flickr account. If that will work for you.
Jw

Here is the table Semi was trying to get up... If this not correct Semi let me know.

I don't know that bigger round balls are better because dead is dead. I too ten to lean toward the larger calibers though. Most of my hunting is done with a 58 caliber using either a patched .570 or .575 round ball. One thing is certain though, the larger balls provide more kinetic energy. Another thing that I like is that if the deer has an exit wound, the blood trail seems to be more pronounced if the deer runs. The only deer that I have shot with a 45 caliber round ball did not have an exit wound but dropped in his tracks when I shot him. That was with a little 50gr charge of GOEX fffg.