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James K · April 5, 2011, 06:54 PM

The .32 S&W, for which those revolvers were designed, has a maximum pressure of 14,000 psi. The .32 ACP is 26,500 psi, almost twice as much.

No, don't fire .32 Auto in those guns. They might not blow up, but it sure won't do them any good.

As to .32 S&W Long, the fact that it fits is not a good indicator. Many of the older .32 S&W [short] revolvers had no shoulders in the chambers and will accept the .32 S&W Long. The pressure is not that much higher, but it is best to stick with what the gun was made for.

Jim

April 5, 2011, 06:54 PM	#5
James K Member In Memoriam Join Date: March 17, 1999 Posts: 24,383	The .32 S&W, for which those revolvers were designed, has a maximum pressure of 14,000 psi. The .32 ACP is 26,500 psi, almost twice as much. No, don't fire .32 Auto in those guns. They might not blow up, but it sure won't do them any good. As to .32 S&W Long, the fact that it fits is not a good indicator. Many of the older .32 S&W [short] revolvers had no shoulders in the chambers and will accept the .32 S&W Long. The pressure is not that much higher, but it is best to stick with what the gun was made for. Jim