Sweet gun for sure. Now use the same tech breakthrough and apply it to 9 for serious controlled burst accuracy. Im not a big believer of the bigger is better, one shot knock down, philosophy. 9 is proven. 9 gives you more round capacity in the weapon, allows you to carry more rounds weight wise, and is alot cheaper. Cheaper means more time spent pulling the trigger becoming proficient with your weapon. Effectiveness depends on what you decide to stuff in the brass more than what size the brass is. Just my opinion though. Can you tell I prefer 9?
lol