30-06 reloading question (Dies)

[Andyt2]

I full length size - all my rifle brass - do not want to take any chances of a round not fitting and have to take the bullet apart to re-do it

[Mowgli Terry]

This is kinda simple. I neck size then run loaded rounds through the magazine before setting out to wherever. Why not the just neck sized cases? I want to make sure there was no bobble in the bullet seating. Actually, running sized case then the loaded round is done more often here on the hill. Those Lee mandrel work very well. I use the FCD to iron out case necks when loading lead bullets.

[Harter]

I had a rifle that knew .2 gr of water in case volume . Neck sizing or in my case at that time short sizing , resulted in a 2" reduction in group sizes . That was of course after I figured out why I could have 3/5 clover leaf and the other 2 18" away .