I found the Hornady table for M1 Garand loads and ordered 500 once used cases of 30-06. Tried seating the bullet 150gr FMJBT 30 cal and once it seats near the cannelure the bullet 'slides' into the case. After a couple passes through the resizing die there is no improvement. What am I missing here? If I am having a dumbas- attack by all means please tell me.