

Ahhh.
Ok, so then the real thing I’m learning here is that the shell is made out of the lighter, softer material to deliver the energy. They put the penetrator cap on, usually made of steel or some stronger heavier material, but it’s thin so not significantly decreasing shell velocity. However, the shape of the penetrator allows for the energy to be delivered all at one precise spot, but it causes the flight characteristics to suck. To get the flight back, they add a thin lightweight material back over the penetrator that is negligible in terms of reducing the energy the penetrator delivers.
Cool









That seems to be my experience so that’s handy.
Doesn’t exactly help me much though.