I was looking at one of my gun magazines and they showed a new round by Ruger called the ARX. I am totally unaware of this round and it comes in various calibers. For me, who shoots .45 cal. the bullet was only 115 grain. That's a very small round for the .45. I am wondering if anyone has seen or tried any of these rounds yet, and if so, how satisfactory are they? For self defense I use the Hornady Critical Defense with the plastic insert. Has anyone seen any Gel tests or heard or any ballistics on it yet?