You take the action out and acraglas the receiver and action so it does not move under shooting pressure. You use a release agent so you can remove it of course so it's not like welded to the stock. It takes all the "slop" out of the whole action and ties it all together as one. This article tells the story.
I love 30-06. Around here it's so prevalent you can like borrow it from your neighbor like a cup of sugar!
http://www.rifleshootermag.com/gunsmithing/bedding_0304/index.html