My 270 Shoots the 140gr Accubonds and the 150gr Partitions about the same as far as accuracy goes.
My observation is the partitions penetrate a little deeper and the Accubonds make a Bigger wound channel.
I get 3000fps with the 150gr Partitions and 3100fps with the Accubonds. I,m working on loads for the 130gr
Barnes TTSX and the 110gr TTSX. I get 3400fps with RL16 and RL17 using the 110gr Barnes.