I thought the pronghorn was closer, obviously. The buck snorted, turned himself inside out and is probably still sprinting for the horizon. I judged the antelope at 35 yards. He was closer to 25 yards, but on the open plains, I was pinned down by his vigilant eyes as he approached, and with no shrubs or fence posts to use for comparison, I had no references to judge his body size or distance. I had no time or cover to reach for my laser rangefinder, so I had to guess the distance.