It has been my experience that at least .22 rifles will often have a preference for specific ammo types and brands. Some rifles will produce excellent groups from even the cheap bulk pack .22s from Remington and Federal. Others won't.
Some time ago I did some fairly extensive bench rest testing using my Winchester 52B with a Unertl 10X scope, and I found that CCI SV .22 LR performed right up there with match ammo, Western Supermatch Mk III and Eley, at 50 yards and 100 yards. I have never tested Green Tag. Back many years ago when I was a competitive 50' .22 gallery bullseye shooter, I always used the CCI SV in that Model 52. I remember also that CCI SV .22 Short performed very well at 50 yards, close to being as good as the LR. The only ammo I have ever used for Olympic Rapid Fire is that same CCI SV .22 Short in my Hi Standard Olympic pistol. It was better than either Western or Eley. Way back when, only .22 Short was used for Olympic Rapid Fire, but today, they use .22 LR pistols. I still have several thousand rounds of that CCI .22 Short.