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g.willikers · February 27, 2011, 01:32 PM

Minimum calibers, in the rule book, are 9mm Parabellum/Lugar, and .38 Special, but not .380.
It has to do with the minimum power factor of the cartridge, multiply the bullet weight by the velocity and divide by 1,000.
It must be at least 120.
Don't know about the other 9mm, like 9x18, 'etc., or the many other types of .38s.
The rule book can be downloaded from uspsa.org.

February 27, 2011, 01:32 PM	#6
g.willikers Senior Member Join Date: September 28, 2008 Posts: 10,442	Minimum calibers, in the rule book, are 9mm Parabellum/Lugar, and .38 Special, but not .380. It has to do with the minimum power factor of the cartridge, multiply the bullet weight by the velocity and divide by 1,000. It must be at least 120. Don't know about the other 9mm, like 9x18, 'etc., or the many other types of .38s. The rule book can be downloaded from uspsa.org.