Hi Cheapheat, The M1 Garand is very cool! The M1 and M1A like bullets in the 150gr. to 168gr. weight. The heavy bullets 180gr. and up tend to SLAM the action. Do not ask how I know this.
Never Use IMR 4350, IMR4831, or H 4831 to hand load for the M1 Grand! They will cause short cycling, increased recoil, erratic port pressure and accelerated wear in the M1 Garand...........
Use CCI BR-210 Primers.
PM me for load data. I have over 80 loads for the Garand.