its always in the hip pouch in my exo.
bow / gun / close or far/ its there. very handy just to use to get really familiar with distances....
mine is justa redfield raider 600m, picks up 500 or so i rekon, which is plenty for me. when i was dabbling that far, i would need to upgrade soon to get better readings when it is 500+ to 600m, an even just knowing if i was 700 or 800 away to get closer would help sometimes. but thats if an when ya pushing things.
now days i dont use it much, mostly to be in 300 or less, an when it is just over the gulley, i like to know exactly how far over there. no dials, just hold on or over here