G1 vs G7 Drag For Long Range Bullets
I've got the rifle and scope setup for some long distance shooting and I'm getting ready to start 1000+ yard shooting. So I just started taking my crono / bullet data looking to get some solid ballistic data.
Here is what through me off, I was wanting to test the accuracy of some of the ballistic tools I've gathered (Excel one from this website and online ones such as Hornady). Using the online Hornady one I couldn't believe the difference when using G1 vs G7 and wanted to know what those of you in these forums use.
Using the G1 function my bullets would have ~384 ft/lbs of force at 1750 (~1 mile) but with G7 it's well over 1100 ft/lbs of force and the drop difference is significant.
What say you if you have experience at this range?
3740 FPS, 180 Grain .475 B/C - 1.5" Sight Above the Barrel, 200 Yard Zero
Weatherby Mark V .30-378 w/ Leupold VX-III LR/T MILDOT 4.5-14x
Last edited by LongRangeMike; 11-12-2012 at 01:48 PM.