Get the shoulder done, but I'm thinking some enterprising soul could figure a way to use a Lead Sled for target shooting and possibly hunting if they put their minds to it!
Now if you like to fish as much as hunt the casting could be construed as Phys Therapy? Of course swimming is physical therapy and by September you might not need that lead sled and could sell it on this site! Then again you could lay around all summer in pain and miss hunting?? I dunno.............