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Archie · November 15, 2010, 02:05 PM

Both cartridges are in the 9mm family. Manufacturers variations in handguns run barrels from .355" to .360", depending on era (wartime guns run loose) and if it were made on Monday morning.

Bullets made by commercial makers in the U. S. are fairly uniform, and typically run very close to .356"

The only thing to watch is bullet weight. .380 ACP - 9mm Corto, 9mm Kurz or several others - does not have the case capacity to push bullets heavier than about 115 grains with much vigor. (Lyman's 47th has loads for jacketed 115 grain JHP bullets.) The standard weight is 90 grains, if I'm recalling correctly.

November 15, 2010, 02:05 PM	#4
Archie Senior Member Join Date: May 26, 2000 Location: Hastings, Nebrasksa - the Hear Posts: 2,209	Yes, for all practical intents and purposes. Both cartridges are in the 9mm family. Manufacturers variations in handguns run barrels from .355" to .360", depending on era (wartime guns run loose) and if it were made on Monday morning. Bullets made by commercial makers in the U. S. are fairly uniform, and typically run very close to .356" The only thing to watch is bullet weight. .380 ACP - 9mm Corto, 9mm Kurz or several others - does not have the case capacity to push bullets heavier than about 115 grains with much vigor. (Lyman's 47th has loads for jacketed 115 grain JHP bullets.) The standard weight is 90 grains, if I'm recalling correctly. __________________ There ain't no free lunch, except Jesus. Archie Check out updated journal at http://oldmanmontgomery.wordpress.com/