I also just started shooting my new left hand 22” Tikka. So far I’ve tested 4 different factory loads. Here are my results
Federal 175 ELDX- 2891 FPS, 1” groups at 100 yds
Hornady 175 ELDX- 2756 FPS, 1”
Hornady 180 ELDM- 2750 FPS, 1.25”
Hornady 160 CX- 2868 FPS, 2.5”
Really happy with the Federal, but I’m running low and can’t find any more. Would love to find some more. The 160 CX did not shoot well at all. I tried cleaning the barrel, but still had the same result. I’m in CA, so I want to find something in copper that shoots better. Going to give the Barnes 160 LRX a try. I have a SRS 4 port brake on it and recoil is less than my Tikka 6.5 CM that has no brake.