LAST EDITED ON Sep-10-09 AT 10:41PM (MST)[p]Seeing how BC is the allure to bergers, here is a tidbit that anyone who has worked with bergers knows to be true.
In fact, bergers were found to be 24% ABOVE their actual BC.
"Discussion and Conclusion
An example demonstrates the implications of an exaggerated ballistic coefficient
for the Berger 115 grain VLD shot at 3148 fps. For a zero range of 200 yards
and a 10 mph cross wind, using the manufacturer?s claimed ballistic coefficient of
0.523 gives a drop of 45.1 in, a wind drift of 19.6 in, and an impact energy of
8?
299?
rifle
near
chronograph
far
chronograph
3
1180 ft-lbs at 550 yards for atmospheric conditions of 30? F, 0% relative humidity,
and 29.92 mm Hg. In contrast, using the more accurate BC of 0.419 gives a
drop of 49.8 in, a wind drift of 25.7 in, and impact energy of 956 ft-lbs under the
same conditions."