Quoted: OK, I know I'm going to get flamed for this, but fuck those that think they know everything.
How do I know if the brass I have is .mil crimped or not? I have boxer and berdan primed cases, is that the difference?
I have 30-06, 8 mm, .223, .308, etc.
How do I know if it is military crimped?
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No worries, it's a good question. Flaming not warranted...
For starters, berdan primed brass is for all intents and purposes not reloadable. Just pitch it, or sell it to a scrap yard. Same goes for anything that is not a brass case. While it is possible to get equipment to load berdan brass, it's not worth the hassle. Trivia: The Berdan priming system was developed in the US, and boxer priming was developed in Europe. Until recenelty, Europe used Berdan priming a lot, and in the US we used boxer priming. Go figure.
Here's a picture that may help show the crimping (left case is crimped, the right one is not):
Basically, you will see a flat ridge around the primer when it has been crimped.
A good rule of thumb is if it is ammo made and branded by a commercial manufacturer (Federal, Winchester, etc) it is not crimped. If it has been made by a military contractor or is clearly surplus, then it will be crimped. Case on the left has LC on it (Lake City [Federal], military contract), case on the right says Winchester (civvie ammo).