I recently rebuilt my 870 into a turkey slaying machine. It's an 870 with a Knoxx stock, 23"VR barrel, with a JH .665 choke. I decided to mount an EoTech XPS I had sitting around on a B-Square mount. The problem is the dot is about 2 3/4" above the centerline of the barrel. That being said I have two questions.
Allowing for the sight offset where would be my best point of aim?
How much drop should I expect from H13 #6 (preferred shell) at 20yd and 40yds be?