I seen this a few places on the net. It's a 22LR necked down to take a 17 caliber bullet. Hornady designed it to follow in the footsteps of the 17HMR. The question I pose to all of you is; Will it fly? I love my 17 HMR so if this sticks around I might have to pick one up for plinking. The ammo is supposed to be priced around $5. The other big advantage to this new round is that all you have to do to make your current .22LR shoot it, is to throw a new barrel on it. I personally think it will take off, how about y'all.