Re: Neck Turning
Agree with Jason on needing to go into the neck a little for most cartridges.
Also agree that the standard 308 is not noted for pushing brass in the neck either. Tight necked 308 is very unusual anyway, in fact cannot ever remember ever seeing one as most are standard chambers and would not show brass flow anyway.
However, take a case, neck it down one size and load a hot round and you will have brass moving into the neck.
I use the K&M Neck turner. It is the only one that I am aware of that cuts the donut, has the blade radiased to cut down onto the shoulder and has accurate .0002 markings and adjustments. Ken Markles number is (717) 292-3175