When done right glass bedding will go a long ways twards insuring your action sits in the stock tension free. Also the bedding will insure that the action will be located near exactly the same each time one takes the rifle down & puts her back together.

This sight providesis one of my favorit explinations of glass bedding. http://www.6mmbr.com/pillarbedding.html

AlthoughI do like the sight provided above as also.