Jim McKenzie at the Kessler Canyon Shooting Academy never doubted, though. He compressed what is typically a 3- or 4-day school into a frenetic 18-hour crash course. The setting was off the charts: the Kessler Canyon lodge and shooting school is smack in the remote heart of a 15-mile-long canyon in western Colorado, about 45 minutes from Grand Junction. There, 23,000 private acres sprawl over vast sagebrush flats, juniper creek bottoms, and soaring mesas. Originally built as a private ranch, it now serves as a luxury lodge and big-time big-game hunting operation.