i agree with janehal, get the k chamber, from a design stantpiont, it fixes everything wrong with the 22 hornet. are you set against reloading? or is it that you just dont do it yet? i have never bought a 22 hornet, but ive shot a few and the accuracy was not interesting. then i bought a contender carbine barrel in 22k-hornet. it shot so well, i bought a cz 527 in 22 hornet and had it rechambered to k-hornet. it shoots under half inch all day anyday! and what a pussy cat to load and shoot!
you could buy the 22 hornet barrel, and try it. if you dont like the results, have it reamed to k-hornet! it,s not that big of a job in a contender barrel .
good luck!