02-21-2025, 01:25 PM
Fired cases will stretch when full length sized. The sizing die should at least touch the case shoulder if the die contacts the shell holder.
IMO, for a boltgun, neck sized cases should yield better accuracy as the case body is closer to chamber dimension provided the fired cases came from your chamber to begin with. Lee's collet neck sizer squeezes the neck around a mandrel without working the case body, so no stretching results.
IMO, for a boltgun, neck sized cases should yield better accuracy as the case body is closer to chamber dimension provided the fired cases came from your chamber to begin with. Lee's collet neck sizer squeezes the neck around a mandrel without working the case body, so no stretching results.