Lyman 457132

[bruce moulds]

sgtdog,
while that software is interesting, it oversimplifies some things.
one example is how it shows the centre of pressure.
the centre of pressure actually shifts, as in supersonic flight it is in one spot, transonic forward of that, and subsonic a little back from there.
another thing it does is assume the bullet remains the same shape as when cast, which is not the case.
the main value of the software is to present a drawing of the bullet you want to a mould maker.
keep safe,
bruce.