To rebarrel a rimfire?

[Minihuntur]

Ok, so I was wonderin if its possible to rebarrel a bolt action .22LR to .17 Mach2. I'd really like to have another gopher gun around and I was thinkin to myself, "Hey! I could buy an old cooey .22 from any farmer within 50 miles of my place . Then I could rebarrel it to a .17HM2 and mount that old Tasco scope and kill those little buggers out to like 200 yards!" am I crazy or is this possible?
Minihuntur