hillbill-
It's going to be tougher for you to find 6.5x54mm ammo than 6.5x55mm Swede, that's for sure. RWS, Lapua, and Norma are some overseas sources for brass and ammo. The 6.5x54mm was used by the Greek military starting about 1903. It has a smaller head diameter than the 6.5 Swede, so case capacity is further reduced. As far as velocity goes, it lags about 300 fps behind the Swede.