bigedP51, thanks for posting..
the info on fire forming new, unfired .303B cases in the SMLE using an "o" ring to 'zero headspace' the rim (flange). This method should work equally well with fresh 7.62x54R brass in the various Moisin-Nagant 91 type rifles as well.
An Eddystone P14 with its Mauser style action may well get a chance to fire form some R-P brass ala "The Ring" in its chamber this coming Sunday. Saturday night's foam will encourage No. 1 son to 'O-Ring' his Savage SMLE this Sunday as well... :)
Y.T.,
Harold