I'll give you a little help. If you use your 30-06 for any hunting at all or if you use your magazine on the rifle, you do not want to anneal the brass. Annealed brass often will have a real soft neck and thus very low neck tension. In your magazine you want brass with lots of neck tension because the recoil will often cause a change in the amount of seating depth of the bullets as they move forward and back in the magazine. Also, the weight of the brass is not real important as long as the brass is of the same age, manufacture, lot and within about 2 grains in weight, you will probably not notice much difference. More can be gained by paying real close attention to bullet seating effort. More effort means old tight worn out brass, consistant pressure means consistant shot to shot accuracy without flyers. I also like to shoot just one shot to check my hunting rifle for first shot accuracy. Often the first shot is all you will get when hunting. Taking several shots when sighting in will only prove that the first shot out of a cold and prefouled barrel will hit in a different place than the second or third shots, etc.... I like to wait about a half hour between shots when sighting in to be sure I am testing in true hunting conditions. If you are using your rifle for competion, then you will probably have the opportunity for a fouling shot, and thus sight in for the subsequent shots, and not the first shot.
Hope this is helpful. The other guys are right however, your question would be better suited to a different discussion forum.
