On Mon, Jun 29, 2015 at 06:43:20AM -0700, Ethan McKinney wrote:
> And yes, stabilization does matter, even in space. It's not just
> cross-winds and wind resistance, it's also that any projectile will tumble
> faster or slower as a result of slight asymmetries while coming out of the
> barrel.

That only matters if projectile orientation at impact is important.
It will likely be important at low relative speeds (only a few km/s),
but even at 10 km/s it will hardly matter at all.

To give a feel for Traveller speeds, a single G-hour is 36 km/s.
Around that speed and greater, any impact results in a superdense bolt
of plasma blasting inward, having little regard for what the
projectile's previous shape or composition might have been.  A
tumbling projectile would produce essentially identical results to a
stable one.

- Tim