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Boxer primers vs the other one
Reddot47
Member Posts: 2,279 ✭✭✭✭✭
When looking at a casing how can you tell if it is a boxer primer or something else?
Comments
Berdan primer has the anvil built into the case, and has 2-3 flash holes in the case.
Here are a couple of illustrations to go along with tailgunner's descriptions:
Berdan Case
Berdan Case
Berdan Primer
Boxer Case
Boxer Primer
I have another question. A friend gave me a bunch of 9mm brass. When you look at the base of the case where the firing pin hits the primer most of the cases have a round dimple. Some however have an elongated dimple almost as if the firing pin was rectangular rather than round. Can you tell me what this is?
It's possible that the cases with primers showing an oblong strike are from a Glock.
The strange primer mark is more of a symptom than a problem in itself. It is caused by the barrel unlocking and moving downward before the firing pin can retract, thus putting a drag mark on the primer. Glocks routinely do it because of the relatively heavy striker. The problem is the unsupported and often large Glock chamber which can leave brass too large to resize properly. However, there is nothing wrong with trying to resize this brass. If it appears to be super tough in the resize die, quit and sort them out from the rest of your brass and recycle them.
Best.