Most of the input is along what I was thinking.
7mm is going to be ~10 more grains powder, ~the same fps, and have a touch less drift....and a bit more azz when it gets there.
I was making the assumption that the barrel life was going to be about the same between the 2....more powder in the 7 being offset by the difference in bore size. As mentioned, either way, it can be replaced.
It's not like either is a bad option. More input's welcome. Thanks.
