Some of these people do xlr shooting only to shoot over twice their normal distance. BUT they should be able to do it with 10 shots or less? How much bc change is there? It would be nice to have a record of the impact velocity. 1 mile is challenging and 2 mile even so, but shots beyond that is luck of the draw! Why luck? The number of shot attempts! Having a calculator to be able to do that kind of distance is unobtainium. Unlike a 2 mile shot there is more info for possibilities or close to. Changing wind speeds and directions isn't an impute. 2 opposing wind speeds at the same equal distance doesn't cancel the other out. When connecting with 1 shot calling it a record is ridiculous, it's just luck! 2 in a row? 3 or more in a row.......call that a record!