03-14-2012, 08:57 PM
stokesrj Wrote:The rim diameter was .4580".
Bob
I know that the US pressured the Brits into adopting the T65 case, which was a shortened .30 Cal Rifle case, eventually becoming the 7.62 NATO, but my understanding was the .280 Enfield started off with a case head closer to the 6.5 Carcano.
.473" is too big for an intermediate cartridge design.
