Hey guys, please excuse me as I am new here. I recently inherited a rifle from my grandfather that I know nothing about. He spent a ton of time reloading his own ammo and I had never heard of .223AI previously. It's a remington 700 that it seems like he replaced the barrel on to shoot .223 AI. I know nothing about reloading. I had some round he left behind that I sent downrange today. But I know nothing about acquiring more of this ammo? Is this something I can get factory loaded, or do I need to learn to load ammo.. lol. Again, forgive me as I'm a complete novice in this area. Thanks!