I don't know about "target ammo"-- is there such a thing for the 17 mach 2? But, as to general availability, during the "Great .22 Drought of 2009," 17 HMR and 17 M2 ammo was present on store shelves in my area when .22s of any kind were not. There were literally NO .22 Rimfires anyplace for several months of that year. I considered getting a 17 of some kind just to have something to shoot...
Good shooting!
