There are two methods that are common. 1) Bedding the barrel in a block or sleeve, the action and forward end of the barrel both float. 2) Bedding under the barrel for a few inches in front of the action. Typically 180 degrees from 3 to 9 O'clock for 1.5 to 3 inches under the barrel and contained within the stocks forearm. Usually the action is also bedded to the stock in this scenario. I do not like this method, it does not work as well as free floating the barrel with the action bedded properly, and usually causes the point of impact to vary more than it has to from the gun in a cold condition to a hot condition.