Reticle and ballistic effect compensation method having gyroscopic precession compensated wind dots

A ballistic effect aim compensation system to adjust a Point of Aim of a projectile firing weapon or instrument firing a selected projectile under varying atmospheric and wind conditions to compensate for effects of gyroscopic precession including Spin-Drift and Crosswind Jump, the system comprising:

• a reticle disposed within a firearm scope;
• a plurality of aiming points disposed upon said reticle, said plurality of aiming points positioned for aiming at various predetermined range-distances and wind conditions and including at least a first array of windage aiming marks spaced apart laterally to define a Spin-Drift and Crosswind Jump compensated sloped or angled row of windage aiming points having inter-mark spacing which compensates for external ballistic effects of a direction and velocity of the selected projectile's stabilizing spin, thus compensating for said selected projectile's Spin-Drift and Crosswind Jump;
• wherein said plurality of aiming points are positioned for aiming at said predetermined range-distances and wind conditions for a baseline air density condition for said selected projectile.

A ballistic effect aim compensation rifle scope reticle with which a shooter may view a selected target and, while viewing the selected target, adjust a rifle's Point of Aim and compensate for gyroscopic precession effects including Spin-Drift and Crosswind Jump when firing a selected projectile under varying atmospheric and wind conditions, comprising:

• a plurality of aiming points disposed upon said reticle, said plurality of aiming points positioned for aiming at various predetermined range-distances and crosswind velocities and including at least a first array of windage aiming marks spaced apart laterally to define a non-horizontal, sloped or angled array of Spin-Drift and Crosswind Jump compensated windage aiming points;
• said first array of windage aiming marks having inter-mark spacings therebetween which are a function of a direction and velocity of the selected projectile's stabilizing spin or a rifle barrel's rifling twist rate and direction, thus compensating for said selected projectile's Spin-Drift and Crosswind Jump.