I own a CZ 75 BD 9mm, I know I can't chamber a 9mm Luger in the Walther. I called the Walther/West German Distributor. He recommended the Fiocchi 9mm short. Or the Italian Arl???? smething or other brand that also produces 9mm short. I did order the 9mm short, but they are so much more expensive than the .380 auto.