How to I.D. a M1903 drill rifle receiver

[ssgross]

the rifles Gibbs recovered were fitted with new production barrels marked "GA" at the muzzle with some sort of crown logo, and m-yy below. That's from my memory. I sold mine when I built my own. It shot just OK. plenty fun enough to plink with, but nothing to write home about. The chamber on mine looked like it was cut with a spoon, and off-center at that. I've heard it was hit or miss with those.