I don't even believe it's really 103yds. Best I can tell is that mulie reacts to the impact of the arrow in just about 1 second....the arrow is released at the 29 second mark and the deer jumps at 30 seconds.

Someone smarter than me needs to figure out what speed that arrow would need to travel to go 100yds in about 1 second.

When the camera pans back, it appears to be more like 50yds or so.