I have two M1 Garands, a Springfield made in the last month of WWII and a Beretta parts version fitted to a USA made receiver (bought a few years ago from the California sporting goods chain of Big Five). Both shoot well, feed well, extract well, and are tactically accurate. But I use a H335 ball powder middle of the road load. The “experts” say that is wrong and only 4895 powder should be used with M1 Garand loads or the operating rod will bend. I have not seen any signs of that yet but I want to be safe with these guns and not ruin them. So I bought a Schuster Adjustable Gas Plug specifically for the M1 Garand for each gun. Neither gun has been shot that much and the operating rod of the Springfield gun has been replaced with a National Match operating rod because it fit the receiver better (done perhaps ten years ago but shot recently since the change over).
For the Beretta parts gun the plug fit perfectly but for the “real” Garand made in the USA by Springfield the plug would not fit in the collar that retains the gas cylinder. The rim on the plug that controls the seating of the plug and acts as a stop hits the side of the machined out area of the collar where it should seat. The rim had to be machined by about 5 thousandths to fit. The diameter of the plug body was also a couple of thousandths too big in diameter and the collar needed some material removal with 400 wet and dry sand paper wrapped on a steel rod.
Now you would think that the USA made gas cylinder collar would fit the USA made Schuster gas plug perfectly and the Beretta part might be a problem but it was just the opposite. I have had the Springfield Garand for 20 years and is a Blue Sky import back from Korea.
What gives with this???? Everything now fits on the Springfield after the "fitting" but.....
LDBennett
For the Beretta parts gun the plug fit perfectly but for the “real” Garand made in the USA by Springfield the plug would not fit in the collar that retains the gas cylinder. The rim on the plug that controls the seating of the plug and acts as a stop hits the side of the machined out area of the collar where it should seat. The rim had to be machined by about 5 thousandths to fit. The diameter of the plug body was also a couple of thousandths too big in diameter and the collar needed some material removal with 400 wet and dry sand paper wrapped on a steel rod.
Now you would think that the USA made gas cylinder collar would fit the USA made Schuster gas plug perfectly and the Beretta part might be a problem but it was just the opposite. I have had the Springfield Garand for 20 years and is a Blue Sky import back from Korea.
What gives with this???? Everything now fits on the Springfield after the "fitting" but.....
LDBennett