gehman 590 sight settig help

[rr1220]

am waiting on delivery of this sight to mount on my 10" t/c barrel for unlimited smallbore in imhsa with midas plus ammo (1000fps mv),the sight states 1.5mm per click @50meters adjustment,i amguessing that is for a rifle sight radius,i am planning on zeroing at 25yards,can anyone help with the calculations for the estimated comeups for 50,75 and 100 meters,thanks for any help

[19 Turkeys]

A friend uses Cigna sights and comes up 3 clicks on pigs and 5 each on turkey's and rams. Don't know how much this will help you but it is a place to start.

Steve W.