I just shot 4 target rifles with 4 different types of ammo. TAC was in last place on 3/4. Used CCI standard, SK+, Center X.
I just opened a new case of TAC, and gave a brick to my buddy, it shot great. So lot to lot lottery like most 22s.
New opened case is actually from 2017 at Cabelas. I forgot I had that case. I heard it was made by RWS at some point in the past.
Comparing CCI SV to TAC. TAC has more fliers, and more vertical dispersion at 100 yards. Both have a lot more vertical dispersion than SK and CenterX. I imagine that is the powder weight variability, although it could be primer, crimp, or projectile.
I shoot a 10 shot sighter group. and a 10 shot test group.
I guess if someone offed me a free case of CCI or TAC, I would go CCI I guess.
Center X shot the best at 100 in all rifles.