Im needing some input for a zero on Dpms 308 24" matchtarget barrel, optics is a NF 5.5-22x56mm npr1 recticle with .25 MOA turrets hszstop mounted on a Larue spr4 1.5 now my question is do i use top hash for zero so I can maximize full range of my elevation, or do I just use thE center of the...