My next barrel once I receive my new action (ARC Nucleus) I'm going to go down the .243 win path. I'm going to be using Lapua or Peterson brass. More than likely Lapua. When chambering, have any of you chambered somewhat short to prevent brass from moving to much when firing? Instead of having to fire the brass to completely fireform 2x it can be used straight out of the box. What are your thoughts on this? I'm moving from a 6 Comp Match to a 243 to prevent having to fireform.