I've heard of about twenty 30" mule deer
Cookie bumps into them all the time. I'm out busting my ass and packing a rifle in the northern extreme of the state for the same interval, and do you think I can find one?
No!
Bumped into a guy that had just taken a buck through the neck at 600 with his 264 Win Mag. Held dead on.
Over the years from prominent ridges, I've actually seen about 100 rds fired at running bucks at 600+ yds. Not seen one connect yet.