JBM Small Arms Ballistics
Bibliography | Calculations | Downloads | FAQ | JBM | Links | Personal | Software | Topics
Google
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.


about these ads...

JBM - Calculations - Drag/Twist Specific Gravities

Definition

Specific Gravity: The ratio of the weight of an object to the weight of an equal volume of pure water at its maximum density, which is at 4 deg. C.

Material Specific Gravity
Copper 8.96
Jacketed Lead 10.7
Lead 11.0
Linotype 10.63
Lyman's #2 10.63
Lyman's #4 11.16
Monotype 10.1
NBC Alloy 10.94
Tungsten 19.3
Uranium 18.95
Wheelweights 11.14
Zinc 7.13

about these ads...
JBM Small Arms Ballistics. Last update 31 May 2008, Copyright © 1996-2008 JBM [V]