[Agrajag]

Range is a property of the (ranged) weapon your troop wields, click on the name of the weapon on the bottom of the unit's description window.
"Accuracy" is a property of both the unit and the (ranged) weapon, a unit has a Precision score, and each (ranged) weapon has a Precision score as well, the effective Precision of a certain unit with that certain weapon is the sum of those precision scores IIRC.