Re: M1 Garand question
I have reloaded M1 Garand brass many times and a bunch of it had 1943 head stamps.
Now if you want a brass hammer of a gun then get you one of them Egyptian Hakim in 8mm Mauser. One firing destroys the brass as the action attempts to pull the case out of the chamber before the pressures have subsided enough. Even though it has adjustable gas pressure and you get it adjusted right for the power level of the load you are shooting, it bends up the rim something terrible. It will throw the brass 10 to 15 feet forward. It also dents the case as the case exits the chamber area. I buy surplus ammo, use it once, and throw it away as it is NOT reloadable. I have never had any problems like this with my three M1 Garands.
The opposite of this is when the M1 Garand short cycles. A common problem is the piston on the end of the operating rod is worn or the gas cylinder is excessively worn and gas is escaping around the piston. New parts is the fix. My Beretta M1 Garand suffered that problem and required only a new gas cylinder to get it working again as the piston diameter was in spec.