Bob covered it pretty well. The only thing I'd add is that for a 500 yd rifle scope I'd go with a 3-9 Burris with a BP in it and or the Leo 3-9 with dotz.

Then I'd take the money I saved on the scope and buy a bunch of components and shoot the heck out of the rig from field positions. Bench rests need not apply...grin

Dober

"True respect starts with the way you treat others, and it is earned over a lifetime of demonstrating kindness, honor and dignity"....Tony Dungy