i was in the same boat myself.decided on the 223 because as others have stated ammo everywhere and some quite cheap.also will last longer found a website,cannot find now that listed how many shots before throat erosion really sets in and the 22 250 was about 1000 will the 223 was up to 5000.also for reloading i came across a site that gave a large list of reloads using blue dot so you can load down the 223 to shooting the same as a 22lr and up from there.http://www.thehighroad.org/showthread.php?t=446724.this is the link check very informative and sounds like fun.bought myself a lee loader in 223 to start reloading cheap and see how it works.