One place that Vitt powders are usually available at are stores or shops that cater to action shooters. They use N310 (45 acp, 40 S&W), N320 (9mm, 40 S&W), N330 (9mm, 40 S&W), N340 (9 major, 38 Super), N350 (38 Super/Supercomp), 3N37 (9 Major, 38 Super/supercomp) and 3N38 (38 Super/Supercomp). N110 doesn't move at all.