John, you've found yourself in the middle of a situation that's only too common with wildcat cartridges. For my book, I did not use any "hearsay" dimensions. I couldn't find any paper trail for a lot of well known wildcat cartridges. The most discouraging was the absence of reliable dimensions for entire lines of classic wildcats -- especially these:
� Saturn's line of ICL (Improved Cartridge Loading) cartridges
� the PMVF (Powell-Miller Venturi Freebore) line that inspired Roy Weatherby
� Rocky Gibbs's cartridges
� the Mashburn cartridges
� the three lines of Fred Barnes's cartridges (the Barnes Supremes, the Barnes-Johnson Express cartridges, and one other line that I can't remember the name of).
... and these are just the ones that I can think-of, off-hand.
