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.
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