Case Length Gage for .40 cal question

[ghh3rd]

Can anyone tell me the Lee # or description for the one I need for .40 cal?

Could this be it? I don't understand the "38-40", and their description doesn't say what caliber it's for.

Lee Case Length Gage and Shellholder 38-40 WCF Product #: 122116

Thanks,

Randy

[Wayne Smith]

That's for the old 38-40 Black Powder cartridge, the 44-40 necked to .40 caliber. Still used in Cowboy shooting. You want stuff for the 40S&W, for the semi-automatic pistol.

FWIW the 38-40 nomenclature was backwards. The 44-40 was a .44 caliber (actually .427) with 40 gr BP. The 38-40 was a true .40 caliber.