I would be interested to hear more on this. I had a strange situation in Harare this summer coming home. They actually freaked out over the EMPTY brass. I had the remainder of my loaded ammo and I had some of my brass, mostly from my double because it has extractors so I stuck them in my pocket then put them back in the box with the ammo. When we checked back in at the airport to leave the freaked out and kept saying they had to "verify" and then did a bunch of fake texting and calling. I told them to just keep it, but they continued carrying on and jabbering with each other and texting people. Finally they said they were going to keep the brass. Ha ha. I was like sure whatever man. I brought the rest of my loaded.ammo home, but they kept like 6 or 8 empty 470 nitro brass?