Mark
If you get a 1/2 mill dot as you know with chair gun , when yove banged in all the info ,
You can make the ranges work at 5 yard increments, by playing with the Magnifcation
I.e. 40 zero , 45 1/2 mill dot up 50 yards 1 mill dot ect , and as you know it's bang on accurate
Atb