well i took apart another savage nutted action.
MY RECCOMENDATION
BUY AN ACTION WRENCH
bbl in a bbl vice
savage nut wrench in place, snug not tight.
( my opinion is the savage wrench collapses the nut against the bbl threads and makes
it harder to get off)
brake the action loose with a breaker bar on the action wrench,
then unscrew the nut