After reading your post again, I think what you are doing is trying to figure out where you are to start with. If this is the case, it will depend on where your front sight post is set. If you are trying to set it up with battle sight settings, 1/4 NM sights are a bad way to do it for several reasons. If you must use them, you should reverse the elevation wheel for the 1/2 clicks. (you still will have way to many clicks to deal with) If this is what you are doing, you would be better off with a standard size aperture or at least the larger NM one R.R. makes.
Here are some ball park come ups to get you on paper with your 1/4 sights, of course bullet weights will vary and will have to be worked out for your rifle:
#1 from a 100 yard zero come up 2 minutes for 200 yards 8 clicks
#2 from a 200 yard zero come up 3 minutes for 300 yards 12 clicks
#3 from a 300 yard zero come up 12 minutes for 600 yards 48 clicks
#4 from a 300 yard zero come up 7 minutes for 500 yards
#5 from a 500 yard zero come up 5 minutes for 600 yards