Patent ID: 8286384

Claim:
A method for aiming a projectile weapon that shoots a selected projectile having associated ballistic characteristics, comprising: based on at least the selected projectile, identifying a corresponding projectile group from at least two different predetermined groups of projectiles, each group encompassing two or more different types of projectiles having different calibers, each group having associated nominal ballistic characteristics; sighting-in the projectile weapon at a predetermined first range so that a primary aiming point of an aiming device associated with the projectile weapon is superposed with a nominal point of impact of a projectile when shot from the projectile weapon at the first range; after sighting-in the projectile weapon, determining a range to a target; based on the range to the target and the nominal ballistic characteristics of the identified projectile group corresponding to the selected projectile, determining an aiming adjustment for the projectile weapon; and using the aiming device, aiming the projectile weapon based on the aiming adjustment.