CMRPL is made up of two divisions, Rifle and Pistol. Both divisions use .22 caliber rimfire ammunition with a 40 grain lead bullet. Rifle matches consist of 40 shots total. 10 shots each in the four basic rifle firing positions, prone, standing, sitting, and kneeling for a possible 400 total points. Pistol matches consist of 90 shots total. 20 shots each in slow, timed, and rapid fire. Plus a National Match Course made up of 10 shots each in slow, timed, and rapid fire for a possible 900 total points. The teams shoot indoors at a distance of 50 feet. The leagues runs 15 weeks during the winter months, generally from December through April.