I also have nail gun tools with .22 rimfire. Looks like I've been using them wrong. From the article:
He added, “These nail guns have actually been used in the past to murder people.”
Then again, the other day a guy was murdered by several people (blacks?) wielding hammers. Guess they'll be pushing for a background check for hammers as well.
I used mine for setting 2x4 toe plates for a big TV shelf in the living room. I'm always a little concerned when setting nails in concrete. A very hard rock can spoil the results.