I went out this last Saturday. First day with my new gun. I ended up shooting both the Federal Premium Sierra 130' s. And Hornady interlock 140' s out of my new .270 Tikka. To my surprise out of the box the hornady' s shot about .80" . I thought that was quite good for the first day with the gun. My gun however only shot about 1.25 to 1.5" groups with the federals. comparing to the hornady' s not that impressed. I am going to try the Federal Hi shoks next and then possibly the core lokts from Rem. What do you guys shoot out of these and what do you think?. Is there much of a difference between the 3? Which would I be happiest with on Deer At around 100 to 150 yeards max range? Are the interlocks better than the Hi shocks, and core locks or about the same? Thanks