Why a 22 CM when one can have a 22-6MM Rem.AI with a 1/7 twist?
The biggest reason I'd choose CM over Rem AI is because of my limited mag length in the Model 7 action. It's a bit shorter than the Model 700 SA.
CM has readily available brass from Alpha Munitions.
No fireforming = longer barrel life on a cartridge that's already going to be short-lived.
So I guess I'd ask in return, why 22-6mm AI when you can pick up high quality brass that's ready to load and shoot immediately?