My personal shot distance for hunting stays home when I go target shooting. 3D isn't hunting, and even if I won't shoot a real deer at 40 yards, I don't see anything wrong with shooting a foam deer that far. As a matter of fact, I find it a lot of fun and it helps me a lot when it comes to killing real deer at 20 yards and under.
York rounds were shot out to 100 yards. NFAA field maxes out at 80. These things came about long before Allen ever went to the harware store. Yes, bowhunters often took shots a lot further back then than we do today. But they also understood that long range proficiency makes short shots a no-brainer.