I'm currently looking for an asteroid model fitting a 72x39x40 box with not too many polies...
The size of the box are the measurements of a part of the Mass Driver subobject on the Centauri battlecruiser model from TBP, as it happens. And I don't need a high poly-count as I intent to use it as projectile possibly moving at about 1000 m/s if not faster...
I won't rescale the asteroids coming with TBP because I think they got too many polies for task...
The CR Mass Driver in TBP is a primary gun and somehow I don't like that at all, so I want to see if there isn't a better way to do this...