311299 should have a BC of .377 at velocities above 1800 fps -
this looks about right -
http://www.shooterscalculator.com/ba...php?t=90bfa0ee
Range Elevation Elevation Elevation Windage Windage Windage Time ___Energy_____Vel[x+y]
(yd) (in) (MOA) (MIL) (in) (MOA) (MIL) (s) (ft.lbf) (ft/s)
0 -1.5___0__ 0.00_____ 0.00____ 0.04____ 0.00____ 0.00_____ 0.00____ 2453____ 2350
50 0.09 _-0.17____-0.05____ 0.22____ 0.41____ 0.12____ 0.07___________ 2304 ____2278
100 0.00__0.00____ 0.00_____ 0.76_____ 0.72_____ 0.21_____ 0.13___________ 2163_____2207
150 -1.88 1.20 0.35 1.68 1.07 0.31 0.20 2027 2136
200 -5.66 2.70 0.79 3.01 1.44 0.42 0.27 1898 2067
250 -11.48 4.38 1.27 4.77 1.82 0.53 0.35 1775 1999
300 -19.48 6.20 1.80 6.97 2.22 0.65 0.42 1657 1932
350 -29.80 8.13 2.36 9.64 2.63 0.77 0.50 1546 1865
400 -42.62 10.17 2.96 12.82 3.06 0.89 0.58 1439 1800
450 -58.13 12.33 3.59 16.52 3.51 1.02 0.67 1338 1736
500 -76.53 14.61 4.25 20.79 3.97 1.15 0.76 1243 1673
550 -98.03
17.02 4.95 25.63 4.45 1.29 0.85 1155 1612
600 -122.87 19.55 5.69 31.07 4.94 1.44 0.94 1074 1555
650 -151.32 22.23 6.47 37.14 5.46 1.59 1.04 998 1499
700 -183.63 25.05 7.29 43.84 5.98 1.74 1.14 929 1446
750 -220.10 28.02 8.15 51.20 6.52 1.90 1.25 864 1395
800 -261.03 31.16 9.06 59.24 7.07 2.06 1.36 804 1346
850 -306.77 34.46 10.02 67.99 7.64 2.22 1.47 749 1299
900 -357.66 37.95 11.04 77.45 8.22 2.39 1.59 698 1253
950 -414.27 41.63 12.11 87.71 8.81 2.56 1.71 649 1209
1000 -476.65
45.51 13.24 98.70 9.42 2.74 1.84 607 1169