Why would you need a pellet rifle? I can't think of a worse self defense weapon. I have a very powerful break barrel and while it provides a cheap way to plink cans, it isn't good for much else. It is single shot, and takes a lifetime to reload. My guess is if you needed it to protect yourself from anything larger than a rabbit, you would be outgunned. It would likely only enrage a determined human attacker. I doubt a grizzly would even feel it. I think it would, however, garner a whole lot of attention from the Canadian Border officers. If one of your goals is to have your RV examined more thoroughly than a colonoscopy a pellet rifle seems to be good bait.