Originally Posted by bman73
Okay so I have now backed off my die, took one of the .338 brass I have laying around that had already been through this gun 2x now, used a candle to soot the neck and ran it through the press. It looks okay to me but I also thought it was okay before as well. Here is a pic of what I ended up with, let me know if it looks like I might still be going to far with it or should I give it a try at this depth?
Looks good to me. How do your primers look? The same as before? Assuming you didn't blow any primers or flatten them, and you said it came out of the same bottle, I wouldn't be concerned about the powder. Primers shouldn't matter ether.
It does look like an excessive head space issue, that's why I asked about the action before. Even if you do have excess head space, by sizing the cases as you just did in the picture, you shouldn't have the case seperation problems anymore. All your new brass will be fire formed again to the chamber size. During new case forming keeping the bullets seated in the lands or right next to them when forming will help with your case seperation too, and it won't be an issue being that you hand load. Only thing might be with that mauser you can usually get quite a few neck sizing reloads if you are not running too hot before you need to FL, or partial FL size.
The one thing though, is if it is an excess head space issue, why all the sudden? Might be something you should have checked out! Have you run hotter loads than before in your last batch?
I have a .308 Norma and have used the .338 WM brass with great success. I don't like the short neck from the .338, but it's a heck of a lot cheaper than the Norma cases.
Here's my .338 transformation photo. left to right, with furthest right being a Norma case.