1.5" heigth scope above bore......26yard zero and projectile going 3000fpsish will be pretty darn close to 3" high at hundy blah de blah from there on.....its old old old school furmula.
as for ballistic app
huntingnut has awesome easy one to use...I will see if this old techtard can post link to it....
failing that
go to www.huntingnut
main page side box on left
about 3rd from bottom is "pointblank online"
click that sucker and follow ya nose.
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