On Mon, Jun 29, 2015 at 08:38:43PM -0700, xxxxxx@shadowgard.com wrote:
> The classic "long rod" penetrator doesn't do nearly as well if it
> hits sideways instead on point first.

At speeds much above 10 km/s, shape matters very little as both
projectile and target behave like fluids.  They "splash" into
themselves and each other on impact.  A rod hitting point-first and a
ball produce impact craters of very similar depth.  A rod hitting
sideways may produce a shallower impact crater if the rod is *very*
long, but negligible for ordinary ratios of 10:1 or less.

- Tim