Does anyone have any experience with this round? I figure it will outrun a 270 AI a little. I am trying to compare the two to see which is more desirable for me. The AI is the way I think I am now leaning because it has a longer neck for me to chase the lands as the erode. That is the only advantage I can think of. This will not be a BR gun, but rather a 600ish yard deer/paper puncher. What say you?