Difficult to say, this SA 2.7 mil with a SA 4-44 bbl came out of an estate sale from a remote area about twenty years ago. My friend bought the few rifles and was able to sell everything except this M1. The left side was without any finish and the bottom of the front handguard was chipped-up and the rear handguard cracked. The stock had dents but nothing broken. Nobody would buy this rifle, the bore was nice but the TE was 4.5. I did a data sheet on this rifle - everything was correct. (examples bolt -12SA heat lot S-A1<>, op rod rev 9 SA uncut, trigger guard milled, hammer -5 SA, safety SA_11, gas cylinder screw single slot. Stock has a very faint SA GAW.
I fired ten clips of mixed 1954 ball and AP, everything worked fine