Which 410 should I get

[04rubicon]

That is illegal for you, I'd keep it as a last resort in a survival situation

I pack a M6 Scout 22 Hornet with 3" 410 slugs and some birdshot rounds in my Twelkwa Kayak as a survival tool, I also am not into dicking around making snares just go to Canadian Tire and buy a couple of big Rat traps then drill a hole in it to tie some paracord so the Rabits cant take off with them. They work great.
Jack

 

[blargon]

If your going to be shooting lots, the .410 and 28ga will kill your wallet in short order. You can reload them for cheap, but factory ammo is expensive. 20ga bird loads are 1/2 the price...