Despite my earlier admonition that this doesn't fall into "firearms," I'm going to reopen this. A member was kind enough to point out that air rifle threads have typically been left open in the past.
Given the current ammo situation, perhaps we should take our training where we can get it, and air rifles seem like a reasonable facsimile.
Accordingly, reopened, with my apologies to anyone who was just dying to post in this thread but could not.
I'm a lawyer, but I'm not your lawyer. If you need some honest-to-goodness legal advice, go buy some.