I've got a Yugo Mauser on the way, but purchased it knowingly that 8mm surplus has gone the way of the Do-do bird. Fortunately there are good commercial loads with re-loadable brass. My rule of thumb for surplus ammo is to buy it generously. Dry markets can go on for a long time, if not forever. Sometimes I buy crates of ammo in calibers that I don't even own, simply because i know it may be the last inventory for the next decade. Milsurp rifle sales would be better if you could get ammo to feed them, but get used to it. Its unfortunately the way of the future. Shooting is not a cheap hobby.