[Raptorq7r13]

I found some .308 brass at the range the other day, nickle plated. It has a primer in the back that is WAY larger than normal. I took one home and compared it to a large rifle primer, and it was larger. I didn't think to see if it compared to the size of a shotgun primer.

I stuck one in my resizing die, and it pushed the release up on the decapping pin, so I assume it's also crimped.
Sorry I don't have pictures, I can get some this weekend.

So, is there any military brass or something with a larger primer? Anybody know why it's got such a large primer?

[NCsmitty]

It's a berdan primed case, probably steel. Look inside and you'll see two flash holes and they are not normally reloadable.


NCsmitty

[Martyk]

http://www.thehighroad.org/showthread.php?t=416634

Take a look at this.

[Raptorq7r13]

Thanks, but are the boxer primers different sizes too?

[bullseye308]

Sounds like you found some silver bear, it should be berdan primed and steel. See if a magnet sticks to the case first off before wasting time going any further.

ETA: berdan primers do come in different sizes. :(

[rcmodel]

Thanks, but are the boxer primers different sizes too? No. All large rifle Boxer primers are .210".

As already noted, Berdan primers come in a lot of different sizes, ranging from .177" to .285".

rc

[Raptorq7r13]

Ok, thanks guys. I'll throw it away since I can't deprime it. I'd never seen primer pockets that size before. Thanks for clearing up my confusion.