My Tikka is a Tactical in 223. The trigger is very good for a factory trigger, and can be adjusted down to 2lbs. The magazine is short compared to the throat, so the heavier bullets will not fit the magazine if loaded to the lands.However, given that the magazine is thick plastic, I was able to remove .020" from the front of the magazine, which lets me load the 69gr Sierra to within .010" of the lands. While on the topic of the magazine,right from new, it didn't always feed every round,sometimes the rear of the cartridge would get pushed down, and the bolt would pass over it. I tweaked the magazine spring, a few times, and it seems much better now. Below are some five shot,100 yard groups fired two days ago while fine tuning my loads with the 69gr Sierra. The temperature was -3 Celcius with a slight breeze, so under ideal conditions, things can only get better.