Shooting schools offer great instruction in controlled settings, and if you want to help customers prepare for their long-awaited mule deer or elk hunt, or make a foray into long-range shooting, you need to understand the game.

We’re talking about true long-range targets to 1,000 yards and long shots at big game in the mountains. Or perhaps even a long shot in the Southeast, which may be 400 yards but instead of sitting in a shooting house near a patch of brassicas it’s...