I load this round down a bit with hard cast bullets(Laser-cast from Oregon Bullets) and once fired brass that i received free. My cost is somewhere between 3.50 and 4.00 bx/50 since I buy all my components in bulk. If I load a premium jacket load I estimate my cost is 8.00-8.50 a box. I have not figured in the empty case, box, or my time. I enjoy shooting and reloading the 10 mm cartridge and am very disappointed that more shooters haven't picked up on this useful round.