I think when/if I need it, I’ll figure it out.
You can get a decent parallax ranging Leapers in the 16-24X range for under $350 and it’s going to be a far better SHTF scope than ones running 5 to 10 times that price because, as I used to quip, “you can take it off and pound nails with it and it’s still zeroed when put back on”.
The optics might be a bit under class but that reliability is a key seller for me. I used a 24X for three years of field target competition before switching to a 50X Nikko Sterling and that 24X is going on my M1A as soon as I can find a decent mount for it.
Hawke sport optics makes some good ones I hear too.
If you want rugged also look to any scope that survives use on a spring piston airgun, they are death on scopes, way worse than magnum rifles.