I definatly would after 3 firings. I am not a big advocate of a neck sizer. sometimes cause more problems than good with neck runout. I do like the lee collet die however.

After 2 or so firings you can get very tight chambering and cause you some grief in field conditions. I have heard many times people saying, "there's never a need to full length" and on more than one occassion, it took them a bad experience in the field during cold weather or hot weather, for them to quickly change thier tune.

I am hunter first and formost. I usually can get great results Partial Full Length sizing. If I can't I do some work on the gun.

What happens, is when fired, brass does expand to the chamber but springs back some. After 2 or three firings, of being expanded, it bonds better and better to the chamber.

HDW, very well know fact my friend. Surprised you have seen or heard it.