.
t
also called 10mm ATM Magnum
{ not the 10 mm Auto }
No one seems to know the person or date this cartridge was invented.
The 10mm (AMT) Magnum was introduced in 1992 as a "Proprietary" Cartridge
for the AMT; (Arcadia Machine &Tool Inc.) later bought by IAI
(Irwindale Arms Incorporated) and now owned by  the High Standard
Manufacturing Company.
The 10 mm Magnum was used in AMT (IAI) Automag IV pistol.
Basically the 10mm Auto Mag. is a lengthened 10 mm Auto, with a lot more energy.
To my knowledge, no major ammunition company is producing this cartridge
for resale, and the owners of the pistol have to load their own ammunition.
10 mm Magnum
Not to be confused with the 10 mm Auto.
,
,
.
$ 3.95 per
Cartridge
.
10
mm
Auto
10
mm
Mag
,
,
.
$ 9.99 for
3 Cartridges
.
The of 1,600 or more different cartridges available
.