A reticle of a projectile weapon aiming system such as a riflescope includes a primary aiming mark adapted to be sighted-in at a first selected range and further includes a plurality of secondary aiming marks spaced apart below the primary aiming mark. The leaf spring portion is designed to collapse and absorb a substantial amount of energy upon impact with another object while a free end of the leaf spring slides along a front side of the mounting portion. More efficient opening features are enabled by the guided action of the tab and raised bead features.