I think the 6.5CM is a great cartridge
shot by some who sometimes make bad decisions with it. Which is
no different than other cartridges without the "fluff". Know the cartridge limitations.
I truly like 6.5's but just don't have need for one with the cartridges I shoot from .243 to 300WM. The 6.5 list of cartridges is great selection but I have a cartridge that will do job. If just starting out, I would recommend starting with 6.5's just because of efficiency of components. You can't go wrong.
As for the deplorable (
) .270Win? Browning recognizes the fast twist by offering 1:7.5 tw for the .270 which changes the cartridge dramatically. No different than what the .260 should have been initially. Don't blame the cartridge, blame rigid minded rifle manufacturer bean counters. There is no doubt the technical design ballistic engineers prob wanted faster twist but retooling costs got in way. Many other cartridges fall into same category. Why isn't 300WM 1:8? Same goes for 7RM, .280 and so on. So many cartridges should have had faster twists but $$$ got in way. Many other cartridges will be significantly better if given same design considerations. The action length is background noise IMO.
The recoil argument gets ridiculous. If recoil is YOUR problem, don't assume its everyones problem. I shoot 1 1/4 oz slugs off bench and no issue. Recoil is like how heavy your rifle can be cause its too heavy for me. Heck my size 16H Irish Setter Elk Tracker boots weigh more than most rifles.