Trajectory compensating device

A trajectory compensating device for use in combination with a rifle scope of the type having a reticle and a turret controlled elevational correction system including a turret which comprises:

• said reticle having a primary sighting plane and a secondary sighting plane;
• said turret including an indexing mark located on said turret;
• said turret including a turret cap operatively connected to said turret controlled elevational correction system so that said turret controlled elevational correction system is controlled by rotation of said turret cap about said turret;
• said turret cap including an indicia carrying means, said indicia carrying means including at least two individual indicia;
• said indicia carrying means located on said turret cap such that each of said individual indicia can be independently aligned with said indexing mark by rotating said turret cap;
• the first of said indicia on said indicia carrying means corresponding to a distance calibration mark wherein when said distance calibration mark is aligned with said indexing mark the line of sight through said rifle scope using said primary sighting plane of said reticle will be aligned with the center of impact on a target of a bullet of a fixed size expelled from a cartridge containing a fixed load down the muzzle of a firearm on which said rifle scope is mounted when said firearm is located at a distance from said target corresponding to the same distance being represented by said distance calibration mark;
• the second of said indicia corresponding to an indicator mark wherein when said indicator mark is aligned with said indexing mark and said bullet of said fixed size is expelled from said cartridge containing said fixed load down said muzzle of said firearm on which said rifle scope is mounted the trajectory of said bullet will first cross the line of sight through said rifle scope using said primary sighting plane of said reticle and next cross the line of sight through said rifle scope using the secondary sighting plane of said reticle and before said trajectory crosses said line of sight of said rifle scope using said primary sighting plane of said reticle the distance between said trajectory and said line of sight of said rifle scope using the primary sighting plane of said reticle as measured perpendicular from said line of sight of said rifle scope using said primary sighting plane of said reticle to said trajectory is not greater than a predetermined deviation distance and after said trajectory crosses said line of sight of said rifle scope using said primary sighting plane of said reticle but before said trajectory crosses said line of sight of said rifle scope using said secondary sighting plane of said reticle the distance between said trajectory and one of said lines of sight of said rifle scope using either said primary sighting plane of said reticle or said secondary sighting plane of said reticle as measured perpendicular from both said line of sight of said rifle scope using said primary sighting plane and said line of sight of said rifle scope using said secondary sighting plane of said reticle to said trajectory is not greater than said predetermined deviation distance.