Well this is more than hypothetical. I used to sport shoot, and really enjoyed it. I competed in shooting clays and skeet as a form of recreation. I had my own shotgun and gear and everything. And I went to pistol ranges with friends and practiced with their revolvers. I enjoyed it immensely and I also never felt afraid of a home invasion, knowing I was armed and well-practiced at the use of my shotgun.
However, when I became a pregnant, I stopped handling shot because of the lead concerns. And then I asked my father-in-law to keep my gun for me in his safe until I decided what I wanted to do. That was over a decade ago.
We have ended up with SWAT on our lawn due to a murder next door (killer committed suicide rather than be taken by police, after being holed up for hours). There are concerns about living where we do and needing to defend ourselves that I won’t elaborate here, but suffice to say that I need to revisit these questions and I would like some Catholic opinions.