That has to be a Photo Shop. The frame is an S&W X frame. I did find 50 BMGA handgun hunting ammo. 624 gr, 12690 ft-lbs muzzle energy, 2952 fps muzzle velocity. See
Magtech. That should break both of your arms the first time you fire it in that tiny fantasy revolver. My Performance Center Hunter 500 S&W Magnum is a real handful with the 440 hardcast. I load 300 gr Speer GoldDot for my "plinking" ammo. The factory Barnes 275 gr has little recoil and is very accurate ammo. Satisfactory for most hunting needs.
I put a 20" 500 S&W barrel on my T/C Encore frame. Shooting the 440 hardcast in that configuration beats the hell out of your shoulder. It was fun to shoot, but the shoulder pain persisted for weeks.