@Oldbloke Agreed, too short to be 30.06 brass. I also think this case was too long for the die. I'm guessing the case neck is too long ... ?? Looks to me as if the case mouth hit a stop inside the die and when the OP forced the press handle down all the way it has pushed the neck down onto the shoulder, forming that doughnut / ridge and also pushed the shoulder back as well, rounding off the normal sharp angle. Would be interesting if the OP could measure a fired case and compare that to max length in a Reloading Book.
What do you think @Oldbloke @grandpamac , would my theory hold water ?
Bookmarks