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A new topic,
Elevation
, has been added. It shows the differences in trajectories when zeroing at different atmospheric conditions and how to calculate a trajectory for different atmospheric conditions.
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JBM
-
Calculations
- Power Factor Input
Explanation of
terms
.
Bullet Weight (50-500 grains) [115]
gr
gm
Bullet Diameter (0.300-0.500 in) [0.355]
in
mm
Muzzle Velocity (500-4500 ft/sec) [1100.0]
ft/sec
m/sec
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JBM Small Arms Ballistics
. Last update 31 May 2008, Copyright © 1996-2008
JBM
[V]
