= 45.5 mm. 4 ring Ø = 30.5 mm. 9 ring Ø = 5.5 mm. 10 ring Ø = 0.5 mm, height 1.4 m above the floor Until 2013, the maximum achievable aggregate score (qualification + final) was 709 for men (600 + 109.0) and 509 for women (400 + 109.0). The score for the qualification used integers (10 as the highest score per shot), and the final stage included decimals (10.9 as the highest score per shot). No top competitor achieved an official perfect aggregate score under these rules. Under rules introduced in 2013, finals became "start from zero", with qualification scores no longer carried forward, and the best eight competitors started all over again. In the 20-shot final, the highest achievable final score was 218.0 points. No competitor achieved an official perfect final score under these rules. Rules introduced in 2018 ended the differences in competition format between male and female athletes. Also, the final was changed to 24 shots (5 shots + 5 shots + 14 shots elimination phase). In the final, the highest achievable final score is 261.6 points. Until 2020, no top competitor has achieved an official perfect final score under these rules. The current world record is 253.7 for men and 252.9 for women.
Qualification Round Pre 2013 qualification rules The course of fire was an unlimited number of sighter shots followed by 60 competition shots for men or 40 competition shots for women, all fired within 75 minutes for men or 50 minutes for women. During this initial or qualification phase, a maximum of 10 points was awarded for each shot. Top competitors sometimes achieved maximum results (a "possible") for the initial or qualification phase (600 for men and 400 for women). Most of these full marks were achieved non-directly
ISSF supervised international and national-level matches and championships, where official ISSF-recognized world records cannot be set. This leads to many national records being equal to the world records.
2013 to 2018 qualification rules The course of fire was 60 competition shots for men or 40 for women, and all fired within 75 minutes for men or 50 minutes for women. During this initial or qualification phase, a maximum of 10.9 points was awarded for each shot. The highest possible 60-shot score for men was 654.0 points, and for women, 436.0 points.
2018 qualification rules ISSF rules introduced in 2018 ended gender differences, expanding the 40-shot qualification phase for women to 60 shots and setting the highest possible 60-shot score at 654.0 points.
Finals Pre 2013 finals rules The top eight shooters from the qualification round moved on to a finals event consisting of 10 shots – each decimal scored to a maximum of 10.9 – with the cumulative score determining the winner (qualification + finals score). Every scoring ring is 5 mm wide and sub-divided in 0.5 mm (≈ 0.1719
MOA) increments in 10 "subrings". Like the other scoring rings, the maximum of 10.9 is derived from an additional set of 10 "subrings" within the center 10-point circle, increasing in 0.1 point value as the rings approach the center of the target.
2013 to 2018 finals rules In November 2012, The ISSF announced other final rules. This finals rules had the best eight shooters starting from zero, eliminating the qualification scores that used to be combined with the finals scores for competition results. The format consisted of 20 final shots scored in 0.1 point value as the rings approach the center of the target, setting the highest possible 20 shots score at 218.0 points.
2018 finals rules Since 2018, the ISSF finals rules have ranked the eight best shooters, starting from zero and eliminating qualification scores. The format consists of 2 series of 5 shots each, to be fired within 250 seconds per series. This is followed by 14 single shots fired on command, with 50 seconds for each shot. Eliminations of the lowest-scoring finalists begin after the tenth shot (series + first 2 single shots) and continue after every two shots until the gold and silver medalists are decided. There is a total of 24 finals shots, setting the highest possible 24 shots score at 261.6 points. If there is a tie for the lowest-ranking athlete to be eliminated, the tied athletes will fire additional tie-breaking single shots until the tie is broken. ==Equipment==