Aside from the logistics of "reloading" a .22 lr, there are other factors that make doing it a futile exercise for long distance accuracy. The .22 has two things working against it regardless of bullet quality or load consistency...it has a low BC and it's reletively slow. I did some work trying to interpret standard deviations in muzzle velocities for rifles and my conclusions are that even if you have very consistent loads that small differences in external ballistics have a profound affect on slow, low BC bullets.
If your bored...see the attached (this has not been vetted by any professional ballistics engineers, it's just my own drivel)
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B3h4xRzVToiaZjc5NTI5ZmUtYmZjNC00N2Q4LWI4Y2MtYTk3MTRlYzU0ZWM2&hl=en
If your bored...see the attached (this has not been vetted by any professional ballistics engineers, it's just my own drivel)
https://docs.google.com/viewer?a=v&pid=explorer&chrome=true&srcid=0B3h4xRzVToiaZjc5NTI5ZmUtYmZjNC00N2Q4LWI4Y2MtYTk3MTRlYzU0ZWM2&hl=en
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