I'm sure this has been posted on here somewhere, but a search didn't give me an existing thread.
I have a mini 30 model 5853. I've tried several brands of ammo, Tula, Wolf, PPU, Winchester, hand loads. With certain brands, multiple rounds would not fire. Looking the cartridge over, I would see a small dimple where the firing pin struck, but didn't ignite the primer. Several other brands (Winchester and handloads specifically) I had no failure to fires.
Comparing all the different brands, I noticed that (more predominantly with the steel cases) the primers were seated differently. The primers of the brands I had no problems with where flush with the headstamp. The problematic brands were recessed a bit. The amount of recess seemed to correlate with the amount of failures, the deeper the recess, the worse the problem.
Did a little research and found that other people were having the problem, and it seemed to be the length of the firing pin. Well, the length of the strike end to the shoulder that stops the pins forward movement. So, some of the fixes dealt with using emery cloth to take a little off the shoulder, or smoothing out the bolt face a little. At the time of my last search, it didn't appear that Ruger had a fix for the problem.
Has anyone else run into this? Any other fixes? Or has anyone had any success with Ruger yet? I know I'll be advised to contact Ruger to see if they come up with anything, but I'm asking more for curiosity to see how prolific this issue is.
Thanks in advance.