Barnes 70 Gr TSX And Tac Powder For 223

[razorback2003]

Have any of you had good luck with Tac and Barnes 70 Grain TSX for a 223? I will be using this in a 1:7 twist carbine length barrel with a NATO chamber. I also have CCI 450 small rifle magnum primers. I've read good things about the Remington 7 1/2 small rifle primers but the CCI's were available at the time.