I have and shoot both the 22 mag and the 17 HMR. For what ever reason the 22 mags I have owned have never done better with any consistency than about 1 MOA. @ 100 yards. The 17 HMRs
have consistently shot 1/2 MOA.
I have custom barrels on all of them, so it appears that the ammo is just better for the 17 HMR.
I like the heaver bullets of the 22 mag but I like the accuracy of the 17 HMR. So normally I recommend re barreling the 22 mag to a 17 HMR and use a custom barrel. This will normally increase the accuracy by 100 % and it is an easy change because the 17 HMR fits everything including the magazine.
Right now the ammo is scarce for the 22 mag but very available for the 17 HMR.
Wind will be a factor with the 17 or 20 grain bullet but for 50 to 100 yards it is uncanny how accurate the little 17s are.
J E CUSTOM