I'm having a hard time deciding on my build. At first I had wanted a .280 AI, but then after comparing brass $, availability, and the fact that the 7RM had a bit more fps, I decided on the 7RM. My dad also has a 7RM which I reload for, so I already have the dies and lots of brass available. So he through out the idea, why don't I just go with a .300 Win Mag. The more I think about it, the more I think he may be on to something. Now what? Is there any reason I should go with the .300 over the 7mm? If I load for the .300, I probably won't be loading anything over 180 grains anyway. The 7mm can be loaded up to that. I thought I had it all figured out, but now my mind's a mess!