What do we really know about the transonic zone?

[Distant Thunder]

Don,

I know I said the original "Ideal" Postell, but I think there was some poetic license taken with that bullet. The way I understand it is that the Ideal Postell was supposed to be a grease groove version of the Sharps long range paper patch bullet. I believe they ended up making the nose diameter undersize on the grease groove bullet and that changes the proportions some. The paper patch bullet you posted first is the better nose shape I think, at least it looks better. Well, that might be just because it's paper patched!