Exactly. The one I used was an "inline" design, similar to the first photo in the wiki article. It was about the size and weight of a pneumatic ratchet, and us

Exactly. The one I used was an "inline" design, similar to the first photo in the wiki article. It was about the size and weight of a pneumatic ratchet, and used the same strips of blank cartridges that would be used for a nail gun - at least, I think they were the same, as I never had to source them. I expect prion disorders would be the biggest concern re: disease transmission. Where I was, the entire batch being slaughtered was from the same herd, so I don't think it was a huge concern. The guns were sterilized along with everything else at the end of the day.