Went out back.  Cows and 4-wheelers back there.  Gave up and came home.  Walked by the lamas and didn't even put the scope on them.
 
Twas a nice winter day.  40 degrees no wind, well very little so me thinks I gotta do some shootin'.
Figured I'd validate my drop chart.  I had just chrono'd and sighed in @ 200 yds and let the computer do its thing.  Figured Sierra's published BCs are reliable.
Velocity right at 2800 mv.
Here's the results.
200 yds      +4 1/4"
311 yds       +1/4"
438 yds      -13"
540 Yds      -32"
4550' elevation,  45 degrees, wind from 7o'clock A < 5 mph.
Scope 1.6" above line of bore.
Sierra 250 Gameking (#2600)
Gotta get me one of those xbal thingers for my pocket pc.  Then I guess I have to carry around a weather station.