No top breaks were chambered for the 32 Long. The 32 Long was only chambered in a solid frame revolver, the first being the "I" Frame for the 32 Hand Ejectors, and later the J Frame and the K Frame in the K32 Masterpiece target model. The 32 long is wonderfully accurate, and can be loaded to SD levels, and was a Police sidearm caliber for major departments for many years in the time before WWII. Don't let anyone tell you it isn't. It may not be the best, but it is viable, (Provided you can put the rounds where they belong).