You should purchase a ported fuel plug for an M1 Garand to ensure that it can function with commercial ammo, or you could possibly invest in M2 ball (several companies sell M2 ball spec ammo especially for the M1 Garand), or reload it. I think some manuals even have M2 https://federal-30-06-for-m1-gara27831.theisblog.com/18506201/federal-american-eagle-30-06-options