Wildcat Bullets

I plugged the BC I estimated for the new match bullet into an online ballistics program. I chose a MV of 2400 fps becasue I am confident I can get this velocity out of my 1:8 .308. The results are a little bunched up, but what is interesting is that the bullet remains supersonic (1150 fps rather than the programs estimate of 1116.5) to just shy of 1600 yards.

Here are the results -

Trajectory (Basic) Output
Input Data
Ballistic Coefficient: 0.835 G1 Bullet Weight: 215.00 gr
Diameter: 0.308 in

Muzzle Velocity: 2400.0 ft/s

Sight Height: 1.75 in LOS Angle: 0.0 deg
Cant Angle: 0.0 deg

Wind Speed: 10.0 mph Target Speed: 10.0 mph

Temperature: 59.0 °F Pressure: 29.92 in Hg
Relative Humidity: 0.0 % Altitude: 0 ft

Std. Atmosphere at Altitude: No Corrected Pressure: Yes
Target Relative Drops: Yes Zero at Max. Point Blank Range: No
Calculated Parameters
Elevation: 4.64 MOA Azimuth: 0.00 MOA

Atmospheric Density: 0.07647 lbs/ft³ Speed of Sound: 1116.5 ft/s

Maximum PBR: 310 yds Maximum PBR Zero: 262 yds
Range at Max Height: 143 yds Energy at PBR: 2087.9 ft•lbs

Sectional Density: 0.324 lbs/in²

Calculated Table
Range Drop Drop Windage Windage Velocity Mach Energy Time Lead Lead
(yds) (in) (moa) (in) (moa) (ft/s) (none) (ft•lbs) (s) (in) (moa)
0 -1.8 *** 0.0 *** 2400.0 2.150 2749.3 0.000 0.0 ***
100 -0.0 -0.0 0.5 0.5 2297.9 2.058 2520.5 0.128 22.5 21.5
200 -4.8 -2.3 2.0 0.9 2198.3 1.969 2306.6 0.261 46.0 22.0
300 -16.9 -5.4 4.5 1.4 2101.1 1.882 2107.1 0.401 70.5 22.5
400 -36.8 -8.8 8.3 2.0 2006.4 1.797 1921.5 0.547 96.3 23.0
500 -65.3 -12.5 13.2 2.5 1914.3 1.715 1749.2 0.700 123.2 23.5
600 -103.4 -16.5 19.5 3.1 1825.0 1.635 1589.8 0.861 151.5 24.1
700 -151.9 -20.7 27.1 3.7 1738.6 1.557 1442.8 1.029 181.1 24.7
800 -211.8 -25.3 36.2 4.3 1655.4 1.483 1308.0 1.206 212.2 25.3
900 -284.5 -30.2 46.9 5.0 1575.5 1.411 1184.8 1.392 244.9 26.0
1000 -371.2 -35.5 59.3 5.7 1499.4 1.343 1073.1 1.587 279.3 26.7
1100 -473.4 -41.1 73.4 6.4 1427.3 1.278 972.3 1.792 315.4 27.4
1200 -592.7 -47.2 89.3 7.1 1359.6 1.218 882.3 2.008 353.3 28.1
1300 -730.8 -53.7 107.2 7.9 1296.7 1.161 802.5 2.234 393.2 28.9
1400 -889.6 -60.7 126.9 8.7 1239.0 1.110 732.7 2.471 434.9 29.7
1500 -1071.1 -68.2 148.5 9.5 1186.9 1.063 672.5 2.719 478.5 30.5
1600 -1277.4 -76.2 171.9 10.3 1140.9 1.022 621.3 2.977 523.9 31.3
1700 -1510.4 -84.8 197.2 11.1 1100.6 0.986 578.2 3.245 571.2 32.1
1800 -1772.3 -94.0 224.1 11.9 1065.7 0.955 542.1 3.523 620.1 32.9
1900 -2064.9 -103.8 252.5 12.7 1035.3 0.927 511.6 3.810 670.5 33.7
2000 -2390.2 -114.1 282.4 13.5 1008.4 0.903 485.4 4.105 722.4 34.5

19 Apr 2007 06:48:48, JBM [http://www.eskimo.com/~jbm]
 
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