Here's the way I see it: Until now, we've not had a true hunting cartridge, suitable for a wide range of game animals at short to moderate ranges capable of being fired from an AR-15-style rifle.
The .30 Rem. AR may have been quickly labeled a deer-hunting cartridge, but does this versatile performer have tactical applications?
With the right bullet, the .30 Rem. AR can be a formidable personal-defense cartridge.
With all of the chambering options available for the AR-15 platform, which one is the best? The answer is: It depends.