final, the highest achievable final score was 218.0 points. No top competitor achieved an official perfect final score under these rules. Rules introduced in 2018 ended the competition format differences 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. Up to 2020, no top competitor has achieved an official perfect final score under these rules. The current world record is 252.8 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). The majority of these full marks were achieved at 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 in fact being equal to the world records. 2013 to 2018 qualification rules The course of fire was 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 10.9 points was awarded for each shot. The highest possible 60 shots score for men was 654.0 points and for woman 436.0 points. 2018 qualification rules ISSF rules introduced in 2018 ended the gender differences, expanding the 40 shots qualification phase for women into 60 shots, setting the highest possible 60 shots 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