Prolly my favorite scopes. I have found that the muzzle velocity is best with this scope is when it is around 2800fps.
Practicing at 200 yds + is the way to get the most from the scope. Using the circles below the cross is the key. What I mean by that is sometimes the top line or the top of the circle becomes the aiming point. And yes, sometimes the bottom of the circle becomes the aiming point.
Zeroing the scope at 100 yds, is not a "for certain" that it will be on at 3=4 hundres yards. IT MUST BE PRACTICED at the given range required.
One of mine sits on top of a 308 and the circle below the x is dead on at 200.
Also have a Burris Fullfield w/ the bal plex. another good scope also.
Being old with not so good eyes, I tend to use this tye of reticle above everything else.
If I don't have a scope with a bdc, I zero at 200 or use th maximuem point blank range using hold on out to a specific distance.
Hope some of this makes sense.
Good shooting and have a Merry Christmas
Jim