5.7x33mm Johnson Spitfire, 40gr JSP, 1 Cartridge, not a box.

Description

One Cartridge:  5.7x33mm Johnson Spitfire, made from 30 carbine cases, mixed H/S loaded with a 40 grain JSP (Jacketed Soft Point) projectile.

Please note: see below in related items for boxes of this item

History of the 5.7x33mm Johnson Spitfire Cartridge:   The idea for a lite machine gun in .22 caliber did not start with the FN  P90 in 5.7x28mm, which was a hot item in the early 2010’s and still today.It started way back in the 1960’s. One of them was the  5.7×33 Johnson Spitfire, (.22/.30 Carbine) designed by a Boston lawyer and Captain in the Marine Corps Reserve named Melvin Johnson Jr.. Mr. Johnson turned away    practicing law, to his passion, cartridge/rifle design earlier in 1937 to designed, built, and successfully tested both a semi-automatic rifle and a prototype light machine gun (LMG). One of his last postwar ventures was in 1963, when he introduced a 5.7 mm caliber version of the M1 Carbine, aka “the Spitfire”.Johnson promoted the smaller caliber and the modified 22/30 carbine as a survival rifle for jungle or other remote areas.While the concept had some military application when used for in the selective-fire  M2 Carbine, it was not pursued and very few 5.7mm Spitfire carbines were produced.  This is basically a military Wildcat, or now aproprietary cartridge as a few  have been produced commercially.