My .223 Tikka is an older T3 with a 1:10” twist (the ad listed it as a T3X and I didn’t feel like returning it based on the minor differences) so it doesn’t handle the heavier bullets. While my rifle generally shot decently with several brands (check the range thread if interested), it shot the ADI 69- and 55- and Frontier 62-grain far better than anything else. So I got a thousand ADI 69-, 400 ADI 55-, and 600 Frontier 62-. It hurt my wallet to spend that much at once, but should keep me in business for a while (maybe 20 weeks? Or a bit longer since I won’t go to the range during hunting season.).