Need help with a Garand born on date. I just acquired an IHC Garand s/n 5,410,677. Everywhere I look the IHC s/n's stop at s/n 5,278,245. Barrel is stamped HRA 3-52, bolt is a Springfield 6528287 SA. It's an actual IHC receiver, as it is stamped IHC D6528291 on it’s legs. I know due to manufacturing glitches many IHC Garands were "mixmaters" already when they left the production line but what gives with this later s/n? Currently not at home and thus can't post pic of receiver, but it is the "postage stamp" variety. Will post pic later.