Yea it’s coming back to me now. I used to know this stuff. Rem .462. Lapua .469. .007 difference. I have never tried this but if you had an old school small base die from a .270 30/06. Ect. And you pulled the expander ball/ decaper out, cranked it down to your shell holder and lubed up a Lapua one and ran it in the die, I wonder what it would size the base too ? I found some old Rem 6BR primed, there is a small hole in the bag so I don’t know how many is in there. I don’t know I want to part with em. Just yet.sorry I tried to attach a pic. Keeps saying file too large.
I actually found all kinds of stuff while looking for them. I was like measuring this little round, what is this. A 22 ppc. I ain’t seen one in 30 years.