Read through here if it's your first bedding job:
Bedding Project - Sniper's Hide Forums
When I did this with my Savage, I put clay in front and behind the magazine just to be sure it wouldn't seep in that little crack in there and lock in. Be sure to use release agent on the clay too as it does help.
Most people suggest bedding the pillars at the same time.
Be sure not to bed the tang of that Savage. I usually put 3 layers of tape on the tang just to be sure it's floating.