My two T3 LS rifles love Retumbo with 140gr Accubonds and Federal 215 primers.
Start your reloads on the lower end and work up in 0.5grain increments for load development. Once you find where it shoots good, you can tweak your load a bit more.
The load that I settled on for my T-3 Lite 270 WSM is a 130 gr TSX over RL 19 and CCI 250 primers. Shoots very well out of my rifle and the performance on game has been excellent so far.
270wsm Load
Linear Mode
