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Where I live guns for /out/ other than hunting aren't really a thing and I have never had anything close to any kind of problem, shit is soft here in my country. But recently there were people camping in some euro countries and it ended in assault/rape, it depends. I guess if you're sleeping and in your buvvy or tent and in the middle of the night a couple dudes surprise you, and they want to cause troubles, I would say that your best bet is a nice dogo otherwise you'll end having your head fucked.
On a side note, if I lived in the US I would probably cc when solo camping but unless I was hunting or target practicing I would not bother carrying a long gun around the woods.
>tldr
Don't be a retard and know your location rules and you will be alright.
