Just had the opportunity to test the PFI scope on my 223AI ISSI upper for coyotes, and it's nothing less than wonderful. Nice low profile scope/turrets, 1 piece 6061 aluminum, Euro-style fast focus eyepiece, fully coated lenses. Shot a 3.5" gp. @ 425 yds. dead center for elevation using 1.7 "stadia units" below x-hair axis,Exbal ballistic calculator was right on for the dope)--65 gr. JLK LD @ 3055 mv. 225 zero. The scope seems to be bright enuf, no distortion to edges. FFP 22 LR BDC reticle can easily be adapted to any trajectory really. Here's a link to the PFI optics-- www.rapidreticle.com