ISSF 50 meter rifle prone

50 metre rifle prone (formerly known as one of four free rifle disciplines) is an International Shooting Sport Federation event consisting of 60 shots from the prone position with a .22 Long Rifle (5.6 mm) caliber rifle. The time limit is 75 minutes for the entire match, including sighting shots, or 90 minutes if there is a need to compensate for slow scoring systems. In the 2013 ISSF rules the 60-shot prone match consists of 15-minute preparation and sighting time, followed by the match - 60 shots in 50 minutes for electronic scoring, and 60 shots in 60 minutes for paper targets.[1]

ISSF 50 meter rifle prone

Men
Number of shots	60
Olympic Games	1912–2016
World Championships	Since 1929
Abbreviation	FR60PR
Women
Number of shots	60
Olympic Games	–
World Championships	Since 1966
Abbreviation	STR60PR

The target: total Ø = 154.4 mm. 4 ring Ø = 106.4 mm. 9 ring Ø = 26.4 mm. 10 ring Ø = 10.4 mm, height 0.75 m above the floor

The sport is based on the traditional "English Match" that also consisted of 60 shots in the prone position with a .22 rifle, but had varying distances between 45.7 metres (50.0 yd) and 100 metres (110 yd).

Before 2017, the men's event was included in the Olympic program but starting with the 2020 Olympics this event has been deleted to promote equal gender in Olympic shooting sports. Mixed gender doubles events were introduced to replace this event and two other individual shooting events.[2] Now this event is contested in World Championships only. This includes a final for the top eight competitors. Beginning with the 2013 season, a new finals format was instituted, in which the qualification score is discarded, and the standings among the top eight shooters are determined by their finals scores alone. The course of fire was also changed significantly with the new rules, from the previous 10-shot and then 20-shots program into a 24-shot elimination format, with the lowest ranking shooter eliminated every two shots, starting from the completion of 12th shot.

The women's event is not Olympic but included in both the ISSF and the CISM World Championships. Since the final was discontinued in 2018, shooters with the same score are separated by a number of tie-breaking criteria, the first being the number of inner tens. Women's rifles may weigh up to 6.5 kilograms (14 lb), as opposed to 8.0 kilograms (17.6 lb) for men, but after the switch from standard rifles to sport rifles this is now the only difference in equipment.