Just got a T1X and got to put some rounds down the barrel yesterday. I fired several different types of ammo of what I had on hand, mostly to see the function of the rifle and get familiar with the scope, which is the Arken EP5. It shot the CCI-SV pretty well and the Lapua CenterX very well. It shot the Norma Tac-22 pretty good and seemed to want to shoot the Aguila Super Xtra as well. I am very pleased with the rifle. I do want to adjust the trigger and down the road would like to drop it in a chassis.