I wonder how the numbers would look if they were broken down further into "made to be pointed at people" (designed for military, law-enforcement, or self-defense use) and "others" (hunting, dedicated competitive marksmanship). Hunting must be huge in the US, but the whole field of "testosterone booster" use cases from small scale "defend my family" right up to the field of full-scale second amendment militia fantasies (sorry if you are a believer) must account for quite a bit as well. I guess that dedicated competitive marksmanship might be low, I suspect that Americans who are into that kind of thing would tend to do it with hardware from somewhere in the "designed to be pointed at people" range.