22 Mag Winchester lever has been my bunny gun predominantly for the past ten years although at times I use a Ruger Mark II 22 handgun. I bought a Marlin 17HMR bolt this year and will be testing it on the bunnies this upcoming bunny season although it will be quite a bit heavier to lug around then my Winchester or Ruger.
I give a hands up to 22mag although I dont have one. I have a semi auto .22lr that I love to shoot. The only thing i've ever killed with it was a small rabbit at about 15yds and it jumped and jumped around like the ground was a hot plate then expired. I need to do more small game killing with it because its a blast to shoot.
From the books that I have read, there is a lot of importance in knowing every nook and cranny of your hunting territory as well as the animal that you are hunting. So scouting as much as possible, just walking the land, will give you a good idea of what's around the corner or what's on the other side of a hill. Which can be very beneficial.
Making your own maps of human and deer trails, and different types of foliage such as group of pines,...