I have been around guns for most of my life, but something I have not figured out is the difference in barrel bedding. Most of the guns I own are lower end hunting rifles and shotguns. What is the difference between a bedded barrel and a free floating barrel? What is the difference between fully bedded and bedding blocks/pillars? Glass bedding vs. aluminum? I am currently in the market for a >308 or .30-06 bolt action and several merchants have asked me what kind of bedding system I prefer. My answer so far is the one that shoots the straightest. I guess I am just looking for some enlightenment.