Well I am by no means an expert, but what are you talking about - 270 will out do a 7mag?? Maybe I'm not understanding you. I have a 270win and it will shoot 130gr at 3000fps all day, but it will not out do a 7mag period. As for all you that don't like the belts, why?? I have a few and my favorite 300win mag has brass fired up to 10 times before it's (brass) junk. I like the WSM's but I think if you already have the belt, just love it for what it is. If you have a RUM, then just love it for what it is. If you.... well you get the idea.
Thanks for listening to the ranting of an old belted shooter.