Not off topic at all...

I'm reading the informed posts with more than passing interest, trust me.

I've been gone here too long and forgot all the sea of knowledge one can navigate.

Any comments or suggestions are appreciated.

Also, it appears that 43 Spanish brass is the parent of reformed cases for a 10.5X47R. The rim and base diameters should be close enough to craft ammo. I can get close enough with 45-70 brass, too. It's base is .13" smaller, but wraping a strip of paper around the base and firing will size the rest of the case concentrically. I'll then fire form again with the paper strip removed, since the rest of the case fits the chamber tight now.