I'm using the Remington Copper Solids 12GA they are rated for dead on at 50 yards but drop -3.5 inches at 100 yards how do I set it to where I can shoot dead on from under my treestand out to 100 yards ? Should I set my 50 yard group at 2" high or will I miss close ?

Basically I want to be able to shoot dead on at 10 yards all the way out to 100 yards if needed