Home Forums Hunting & Shooting AR and Tactical Rifles Which AR15 caliber should I choose for deer hunting?

I would guess that it's a question of demand. The wast majority of AR-15s sold are .223/5.56 1:9 16 inch CM barrels. It's a lot cheaper to feed at AR with .223 than with WSSM anything.

For those that use ARs in competition, they will not even look at WSSM. So that would only leave the AR-15 hunters.