Someone with a FFP scope with 25X magnification could put this question to rest but I doubt you can fit a 10mil hash mark at 25X. I have a SFP VariXIII LR 4.5-14x50 with mildots. It has 5 mildots and a post in the reticle and I think you could get 10 mils in the reticle. But as you increase the magnification you increase the size of the reticle. That's why I doubt you could fit a 10 mil hash mark at 25X.