deep primer strikes

pssman308

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I was sorting my brass from my last range session tonight and found some with deep strikes. What causes this and is it anything to be concerned about?
 

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Did you also pick up brass from other shooters?
While most combat tupperware leaves shallow "designer dents" my Brn HP looks like the big round firing pin went to the bottom.

As long as the primers do not perforate, no worry.
 
Did you also pick up brass from other shooters?
While most combat tupperware leaves shallow "designer dents" my Brn HP looks like the big round firing pin went to the bottom.

As long as the primers do not perforate, no worry.
No it was all my reloads.
 
looks like you tried to get seven shots out of your six shooter.
go ahead .. chamber an empty and drop the hammer on it, thats what it'll look like
 
I like Venomballistics answer. just adding two cents, if you don't have a revolver I would say that your cases were slightly different lengths at firing. A thou or two can change the look of the primer strike. I had a similar problem in .45 auto about 20 years ago when I started reloading. One of the guys at the range told me to make sure my primer pockets were clean and the cases were the same length. I became kind of anal for a few years about keeping cases clean and making sure I trimmed each lot after every firing so every case was the same length. I used the lee case trimmers and the lyman primer pocket cleaners. I cleaned the primer pockets and trimmed the cases watching TV in the evening. Never had the problem again. FYI: I was reloading pistol ammo on a single stage press so I always took my time with every cartridge.
 
:) I guess it could be a high primer. In over 30 years of reloading hand gun ammo I have not cleaned one primer pocket nor trimmed a case and I never had a problem. Reloading for rifle is a different story. Don
 
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