The elevation turret is usually a steel knob for precision adjustment, also referred to as the elevation adjustments knob. Turning the knob lets you adjust the reticle up and down. Two other well known hunting reticle choices would be the BDC, or bullet fall compensating reticle, as well as MOA, https://adjust-gun-scope35790.digiblogbox.com/54243500/select-gun-scope-secrets