I recently bought some used brass from a member on the forum. About 99% of it was Remington, Winchester, Fiocchi, Corbon, BUT there were about 10 pieces of another brand I don't know about. It is boxer primed with a orange sealant around the primer. The headstamp says, "lk 03 9x17". Does anyone have any experience with this? Its a small number of brass, if it was 9mm brass I would just toss it out but since its .380 I'd rather use it if there aren't any issues.