I use a Ruger Single Six revolver SS 5.5" barrel. I walk most of my line and with all the other gear you need to make/remake sets plus any animals you catch the rifle just gets in the way for me. I have been really happy with the Ruger, it is accurate enough that you don't have to worry about being able to hit what you are shooting at if you do your part and the ability to shoot S,LR or cbs without having to single load them is nice as well. I usually carry it loaded with 22 LR HP in case I get the opportunity for a bonus take while I am checking my traps, it happens often enough to make it worthwhile, and then switch to shorts or cbs for the actual dispatch except for coyotes where I use the LRs. Oh and I do this by carrying the first two rounds as LR and then load the other 4 shorts or cbs and just cycle past the LR when I need the others. It sounds more complicated than it really is when your are actually doing it.