I think, guys, If you look a little harder, the 8X50R Austrian is .323. The 8x56R is .326-.328. The conversion was complete. The existing rifles had the grooves deepened and the chambers cut. The reason for upping the diameter escapes me, but this allowed the clean up of the older rifles barrels.
This is in Edward Ezell's Small Arms of the World and another review of the Austrian cartridges.
I have owned three of the 1895 carbines in 8X56R and they have the larger bore.
Please, NorthernBob, slug your bore before loading the larger diameter bullets. These actions are relatively strong, but don't push them too far.
I shoot cast and jacketed in mine. 210 grains at about 2200 fps. 4895 / RL 15 / 4064 are good powders. They shoot very well. The only issue is the front sights on the military guns tend to be too short. These are sighted for about a dead on at 300 meters. Likely with the sporter, this won't be the issue.