Absolutely love to shoot my Kar98K...but getting 'affoardable' ammo was an issue from the get go. I wanted it primarily as a plinker.
I had a wack of 30-06 brass that I reformed & trimmed into 8mm Mauser brass and cast my own bullets with a simple lee melter/mold. Reforming the brass was easy to do...trimming a lot of shells is a pain. I ended up chucking a K&N case holder in a lathe...but once done it's just a touch up after some firings. Once that's done it's easy to have a hundred+ cases ready to go at any given moment. In practice I'm usually shooting other rifles at the same time so really only use 50 pieces of brass at a time.