An analysis of the propagation speed indicates that the rupture propagated at a normal velocity along the original segment, but increased in velocity to above the S-wave velocity after the jump across the extensional stepover and continued at that speed until propagation stopped.
12.
Because the velocity associated to a vortex ring at a given point depends linearly on the circulation of that ring, a system of linear equations can be written, so that when solved, it will provide the value of the local circulations that will cancel the normal velocity at each control point.
13.
Independent testing by Gary Roberts showed that RBCD ammunition is, " nothing but lightweight, repackaged varmint bullets disguised with a black coating of moly, and driven to higher than normal velocities with concomitantly higher than normal pressures . " Roberts cites a USSOCOM and ARDEC study published in 2007 which supports his findings.
