R657-5-9. Handguns

(1) A handgun used to take big game may not have an attachment capable of electronic function, other than illuminated reticles. (2) A handgun may be used to take deer and pronghorn, provided the handgun: (a) is a minimum of .24 caliber; (b) fires a centerfire cartridge with an expanding bullet; and (c) develops 500 foot-pounds of energy at the muzzle. (3) A handgun may be used to take elk, moose, bison, bighorn sheep, and Rocky Mountain goat, provided the handgun: (a) is a minimum of .24 caliber; (b) fires a centerfire cartridge with an expanding bullet; and (c) develops 500 foot-pounds of energy at 100 yards.