I hit my head last year and purchased all the “go-to” survival rifles including:
Springfield M6 Scout .22/410
Henry AR7
Marlin Papoose
Savage 24C Campers Companion (.22/20 ga)
Browning Sa22
I’m a rookie shooter (I miss a lot) and I’ve used all of them at the range, and carried different ones at different times in the Bush hunting partridge. There’s an extensive write up on the forum with someone who field tested all these models, it’s an excellent read.
The M6 is the coolest of all of these and I find it reasonably accurate for my awful shooting abilities. The .410 is a good option and patterns well, but the short barrels make it LOUD. If I shot my limit of grouse in a day I’d be deaf.
For me, who doesn’t shoot often, the AR7 is the most accurate shooter. I guess it’s the peep sight or the orange bead, or the balance of whatever. It seems more likely to group well for me. The plastic buttstock isn’t great, but the whole setup is compact and it floats!
Honestly though, for survival, the Campers Companion in the .22/20 ga makes the most sense to me. The gun has some weight to it and a true forestock. The .22 is accurate for me with practice and the weight of the gun makes it quiet and comfortable to shoot. The 20ga is cylinder bore, and only a 20” barrel, so the pattern is, umm, wide, but the option to shoot a 20 ga slug in a survival situation is nice to have IMHO.
If I’m camping in the back country and worried about encountering an unwanted visitor, I take the 24C. If I’m out for a walk and might shoot a bird or a rabbit, I take the M6 and if I’m walking and thinking of plinking with friends or taking a surprise small critter I carry the AR7.
They’re all mission specific firearms to me. All good at what they say they can do.