Originally Posted by TOM H
I seen your last post and pictures. I've got some of the older 280AI in it will vary in case length and I think some of that is case is not really formed at the shoulders. You can mike the dia at the shoulders and find that will vary also.
If you think the cases are off call Nosler give them the run # or send cases back to them.`
The cases are not off, they are at saami spec. Problem is many chambers are .014 longer than saami spec. I can use the cases, no problem. All I have to do is run out to the shop and turn out an expander mandrel to neck the brass up a bit until it will not chamber, then neck it down with a sizing die until I get a crush fit.
I think you are correct that the older cases were not fully formed and think that is the reason they would work in both saamit and non saami chambers. These newer cases have sharper shoulder and seem to be fully formed and short.