Just looked at a Bushnell site and I beleive that scope has 85 inches of travel at 100 yards. That means that you have 42.5 inches from center and it will only take about 25 inches to make up for the rail that you are mounting it on. You should have plenty of adjustment to sight in at closer than 100 yards. But if you have the scope and are thinking of getting the rail, why? You should have no problem sighting in at over 1000 with anything as flat or flatter than a 308 win. and 85 MOA adjustment on your scope.
Just my .02
I used to re-load but now I "hand-load".
-- Well, at least I try