The area where I sight in my rifle is in an old pit on my property. The 50 and 100 and 150 yard positions are all nice and flat and work well, but I'm wanting to work a little on my BDC drop rectile and move out a little farther. If I go out to 200 yards I will have to go up on the top of the pit and shoot down into it. There would be about a 15 foot elevation drop from the top of the pit down to the target. I still don't know if I'll be able to get out to 300 or 400 yards and still see the target so it might all be a moot point.

How much would the 15' elevation drop affect the impact point of the bullet at 200, 300 and 400 yards? A fraction of an inch or would it actually be a meaningful difference?

P.S. I'm shooting a 7mm Rem Mag.

Thanks, Nathan