View Single Post
Old August 16, 2012, 01:48 PM   #7
Senior Member
Join Date: August 25, 2008
Location: Potatoes and Hops
Posts: 11,332
It looks like the shoulder is making contact inside the die, and the additional travel in the press ram is causing the bulge.

Back the die off, so it just sizes to within 0.010" of the base of the neck, and see what happens.

However... you didn't specifically say what type of die this is. Is it an actual neck-sizing die, or is it a full-length-sizing die that you're using for neck sizing?

That "bulge" looks like regular expansion (that has been partially re-sized), to me. And... it looks like your chamber may not be symmetrical. So, if you rechamber the case with a different orientation than it had when ejected, it will offer resistance (sometimes substantial).
Don't even try it. It's even worse than the internet would lead you to believe.
FrankenMauser is offline  
Page generated in 0.04383 seconds with 8 queries