I would state that the safe bet is to keep impact velocities at 1,800fps +/-. Having said that, in testing gel and live tissue, there weren’t any surprises on that shot.
No. It was functionally culling. A simultaneous fire was done by three others on three different elk with me as the spotter. Their elk all dropped/died and the herd ran out to +/- 800 yards. I got on the gun,
@PNWGATOR moved to the spotter, and I shot the first elk that separated enough from the herd to get a clear shot. It was a total none event.
Yes, 803 yards is very far, no I would not suggest people shoot elk or any game animal at 800 yards. Regardless of caliber/bullet.