One of my employees stumped me with a question today. His question was "Can an antique pistol(flintlock,percussion, etc) be open carried loaded in Multnomah county?". My first response was "Why would you?", but that still didn't answer his question. I did a little looking and couldn't find anything that necessarily classified antique weapons differently than a cartridge weapon, so I would assume they are dealt with the same way. Am I correct? In my looking it does seem like some states treat them with federal laws and don't count them as "firearms". Interesting.