ORIGINAL: gleason.chapman
ORIGINAL: cayugad
1687 = 80 1892 = 100 grains of Black Horn with a Barnes 300 grain Expander. So if you can find the BC of an expander, you can run it through a ballistic calculator with the kind of sight in distances, etc you want.
Dropping 1800 fps, .207 for BC, 300g bullet, 100y zero (leave rest default)into this:
http://www.sav10ml.com/pages/load_data/traj_basic_dat.html
I got this. 1" high at 50. 2" low at 125 and 5 inches low at 150. Recommend you sight in 3" high at 100 yards, if you do that your good out to just shy of 170 yards by MPBR.
Chap
If you switch toa Barnes Origonal 300g, the BC is .292, up your charge to 120g of Blackhorn so you shoot 2000 fpsand you can shoot to 200, MPBR, again sight in 3 high at 100. Here is the chart.I have done a lot of shooting and checking this bullet and the numbers are right from this program with the Barnes Origonal.
Chap
