A ballistic effect compensating reticle for rifle sights or projectile weapon aiming systems (200; 300) adapted to provide a field expedient firing solution for a selected projectile, comprising: (a) a multiple point elevation and windage aim point field (150; 350) including a primary aiming mark (158; 358) indicating a primary aiming point adapted to be sighted- in at a first selected range; (b) said aim point field (150; 350) including a nearly vertical array of secondary aiming marks (154; 354) spaced progressively increasing incremental distances below the primary aiming point and indicating corresponding secondary aiming points along a curving, nearly vertical axis intersecting the primary aiming mark (158; 358), the secondary aiming points positioned to compensate for ballistic drop at preselected regular incremental ranges beyond the first selected range for the selected projectile having pre-defined ballistic characteristics; (c) said aim point field (150; 350) also including a first array of windage aiming marks (260L-1, 260R-1) spaced apart along a secondary non-horizontal axis intersecting a first selected secondary aiming point; (d) wherein said first array of windage aiming marks (260L-1, 260R-1) includes a first windage aiming mark (260L1) spaced apart to the left of the vertical axis at a first windage offset distance from the vertical axis selected to compensate for right-to-left crosswind of a preselected first incremental velocity at the range of said first selected secondary aiming point, and a second windage aiming mark (260R-1) spaced apart to the right of the vertical axis at a second windage offset distance from the vertical axis selected to compensate for left-to-right crosswind of said preselected first incremental velocity at said range of said first selected secondary aiming point; (e) wherein said first array of windage aiming marks (260L-1, 260R-1) define a sloped row of windage aiming points having a slope which is a function of the direction and velocity of said projectile's stabilizing spin or a rifle barrel's rifling twist rate and direction, thus compensating for said projectile's crosswind jump; (f) the reticle thereby facilitating aiming compensation for ballistics and windage for two crosswind directions at a first preselected incremental crosswind velocity, at a first preselected incremental range corresponding to said first selected secondary aiming point. (a) a multiple point elevation and windage aim point field (150; 350) including a primary aiming mark (158; 358) indicating a primary aiming point adapted to be sighted- in at a first selected range; (b) said aim point field (150; 350) including a nearly vertical array of secondary aiming marks (154; 354) spaced progressively increasing incremental distances below the primary aiming point and indicating corresponding secondary aiming points along a curving, nearly vertical axis intersecting the primary aiming mark (158; 358), the secondary aiming points positioned to compensate for ballistic drop at preselected regular incremental ranges beyond the first selected range for the selected projectile having pre-defined ballistic characteristics; (c) said aim point field (150; 350) also including a first array of windage aiming marks (260L-1, 260R-1) spaced apart along a secondary non-horizontal axis intersecting a first selected secondary aiming point; (d) wherein said first array of windage aiming marks (260L-1, 260R-1) includes a first windage aiming mark (260L1) spaced apart to the left of the vertical axis at a first windage offset distance from the vertical axis selected to compensate for right-to-left crosswind of a preselected first incremental velocity at the range of said first selected secondary aiming point, and a second windage aiming mark (260R-1) spaced apart to the right of the vertical axis at a second windage offset distance from the vertical axis selected to compensate for left-to-right crosswind of said preselected first incremental velocity at said range of said first selected secondary aiming point; (e) wherein said first array of windage aiming marks (260L-1, 260R-1) define a sloped row of windage aiming points having a slope which is a function of the direction and velocity of said projectile's stabilizing spin or a rifle barrel's rifling twist rate and direction, thus compensating for said projectile's crosswind jump; (f) the reticle thereby facilitating aiming compensation for ballistics and windage for two crosswind directions at a first preselected incremental crosswind velocity, at a first preselected incremental range corresponding to said first selected secondary aiming point.