If they’re coming from any distance, they need check every store en route.
I’ve got some cases stashed away. Loathe to break into them but may have to. I also have a couple of bags of 9mm reloads I bought years ago at a range. Maybe use those.
I do have an H&K .45 Cal which I hardly ever fire. Since they do have those in stock I may just bring that, and the 9mm reloads.
Another problem is that I am in California, and if I understand the laws correctly I can’t even legally lend my friends a pistol at the range. So I’ll have to check on the latest edition of “California Firearm Restrictions Weekly” to be sure.