Joined
·
14,173 Posts
I have some strange 223/556 brass. It;s LC the mouth edges looks like a hack saw blade with very fine teeth. Any idea why it would be like that?
Yeah, I have seen many once fired LC cases like that. And that is not the only cases I have seen with mild serrations on the case mouth from the factory. If it’s range brass, then you don’t know what caused it, but if you know it is once fired, it is not really a worry. I have seen case mouths worse than that from Winchester crimping on .308 factory ammo.Those serrations are to enable factory machinery to "grip, rotate or move" the brass along the assembly line.