Just how much difference does it make shooting off the level?
Where I zero my rifles before a trip out, at 100 yards, the target is on a banking about 15 - 20 feet higher than where I'm shooting from. Yesterday I zeroed my Hornet and set off, first two head shots on rabbits at about 95 yards were complete misses (level ground) ! Stuck a target out and found I was a good inch too high, this has happened before with my hmr.
Would this slight elevation make that much difference?