The original post is a bit off to start with. The 6.5CM does not outrun either the .260 or the Swede. What the CM offers is a case that has a 30 degree shoulder in a case that is short enough to seat long bullets out without infringing on powder capacity. So you have a case short enough to feed fit in the mag with the bullet seated out where it ought to be. Combine those characteristics with the most accurate factory ammo I have ever seen and you have a winner.
A friend of mine fitted a .260 barrel on a long action and seats those long Berger bullets out where they should be and that cartridge feeds perfectly in the long action and he is getting veracity that the CM cannot reach.
