Thanks for the ideas on bore size ! 303 (311) does not fall though barrell ,308 just about does (needs some light tapping )
I thought the rifle barrel would be buggered before I got it as most 303s have been shot with corrosive millarty ammo ! and had been going to rebore to 375 Flanged or 9.3X74 (which has same rim size)if the barrel was heavy enough (which this looks to be) also has same pitting in action face ! Is this a stop now throw away thing ? as i,m trying to make a silk purse out of a sows ear ?