Both CDM and Norma ammo have become very collectable and are too expensive to shoot nowadays. Norma ammo is too hot and can’t be recommended for extended use in the Auto Mag. The next available loaded ammo came from Norma in Sweden. CDM ammo has dirty powder which makes it inconsistent, and it quickly dirties up your gun with unburned powder. The only way to get this ammo to reliably cycle the gun is to lie about it. The first available loaded ammo came from CDM in Mexico. The mushrooming of the frame can be so severe that it will prevent the barrel from being removed from the frame.
With continued use of hot ammo you will see the bolt lugs chipping or bending rearwards, and the accelerator will begin to mushroom the frame where it strikes it. The older articles were written at a time when a new bolt could be had for $45! Some of the published loads were intended for large game hunting, and weren’t to be used for a weekend’s plinking. Most of these loads are too hot for the gun. There have been several articles published over the years containing Auto Mag reloading specifications. A 240 grain bullet moving at about 1250 feet per second will provide enough recoil to reliably cycle the gun and not beat it to death. The Auto Mag was designed to shoot a semi-auto counterpart to the. “If they wanted a rifle, they should have bought one,” Harry would say. The inventor, Harry Sanford, always blamed the Auto Mag’s bad reputation on people shooting ammo that was way too hot for the gun. As soon as people started shooting Auto Mags, the guns started breaking.
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