I've found stepped brass too. Maxxtech has a step in it and I'm not sure if it can be reloaded but I haven't tried, I toss it in the scrap bucket. Some others to keep an eye out for is Freedommution had a brand American steel, which was a brass coating over a steel case. Find those with a magnet. Makarov is like said above is 9 x 18. 9mm luger is 9 x 19. My advice is to check, check and recheck. Read and educate yourself. inspect your brass and start low. Enjoy reloading.