For long guns firing rifle ammunition (5.56 NATO, 7.62 NATO, 7.62X39, 7.62X54R, and 5.45X39) I normally practice at 50 and 100 meters. Keep in mind that none of my weapons have a true scope. My 9mm Para Uzi Mod B carbine is good out to 100 m but I prefer to fire on 50 m targets using it.