Welcome to the forums from the Wiregrass! S&W made .32 rimfire in both short and long cartridges. The .32 Model 1-1/2 was initially designed for the short cartridge but the cylinder is long enough on the 2nd issue model to chamber the long cartridge. However, as Del says, it is no longer manufactured into commercial ammo. There are some special cartridge conversion inserts that allow the gun to be fired with .22 caliber blanks. I believe they are made in France but they are very hard to find in the US.