Another 10minutes I'll never get back....
Somewhere here in the DRTV archives is a scoped target game with 3 different rifles, 300Win, 338Lapua, and a 50BMG.
You have to adjust for the windage and elevation, to the metal target downrange, the "ping is great" at 1500 yds...
Wind changes each round, and it's very authentic in its adjustments.