I thought long and hard over this a couple years back, and then decided to go with the 6.5 CM. built mine and it came in at 8.4 lbs with out scope. I have a 18in BSF carbon wrapped barrel that is a 1/2 MOA all day. took it out this weekend deer hunting and got a deer at 153 paces running with one shot. dropped it in its tracks with a 143 ELDX. cannot say enough about my 6.5 CM. yes it has less recoil, yes ammo is getting more available, and stays super sonic at longer ranges. the 308 is a great round and has been around for a long time. you cannot go wrong with either round, just have fun