Well, I missed the voting window, but I agree with the post. A .22LR is an essential. Any will work. The Ruger 10/22 has the most readily-available accessory and upgrade ecosystem in the US, but most are perfectly adequate out of the box regardless of maker. Maybe a sling, a scope, and some spare mags for any model is all one needs, and iron sights might be sufficient anyway.
I like the idea of iron sights, less to go wrong and at the ranges I'd be shooting it won't matter. I always have extra mags for everything, probably overkill in some cases but it's what I do. (I learned that lesson back a long while). I also like those little mag holder pouches one can Velcro to the stock. Most of my rifles have them (round holders) for two rounds in each, but with the .22LR an entire magazine can slip in them due to reduced weight of the ammunition.
Anyway, thanks for weighing in on the post, I appreciate it.
One bonus for the 10/22 rotary mags and similar: they fit into many belt pouches for revolver speed loaders. I don't much care for stuff on the stock, but on the other hand, if the rifle is a self-contained system, that would have bonus advantages when SHTF. Just one thing to grab.
I usually only keep a couple rounds on my stock, larger calibres, when staying still is required some small finger movement to drop a round in is preferable to changing magazines. Of course, I mean this in the context of shooting only one or two rounds, not sending magazines full of rounds.
I've used the rotary magazines a lot and they're good but possibly subject to issues in the field with dirt/sand ingress? I think I prefer traditional magazines.