have you given the 260ai a thought? I did the 6.5-06's and then tried the ai. I am getting similar velocities, but no mag box constraint. not sure what the colt box is like....but its worth a thunk considering you have to buy dies anyway......and speaking of, ive had stellar luck with lee collett dies for sizing the neck and a redding or wilson body die for fl sizing.

Originally Posted by BrentD

I would not buy something that runs on any kind of primer given the possibility of primer shortages and even regulations. In fact, why not buy a flintlock? Really. Rocks aren't going away anytime soon.