I neck size for a 308 bolt gun, and for my super 30 bolt gun. Everything else gets the old FL sizer. I notice a little tighter group at distance neck sizing vs full length sizing on those two rifles, other bolt guns I have it doesnt seem to make a difference. I agree that concentricity and neck tension are your best friend when wanting quality hand loads. Give it a try both ways, you may not notice much difference in your rifle, with a tight chamber you may not even see a difference in brass life. Good luck..

Jason