I am having a problem with aluminum cases.
I recently purchased 5k primed aluminum cases from RMR. The cases are from Federal demilled ammo.
I am using 115 and 124 grain cast bullets.
The primers are "blowing" out of the cases when fired - 50% - 60% of the rounds. This occurs in all of my 9mm semi's.
I called RMR and they say my load must be over pressure. But, this is the same load I use in brass cases. And this never happens.
I use Titegroup powder and I load by the book. My overall length is 1.13"
What do you think?