I read the first reports on that new cartridge. Designed to work in the short action AR. There are so many new cartridges out now for the AR platform, its hard to decide.
I have noticed that some of the prices for bullets, primers, and loaded ammo is starting to go down somewhat. I got a new Midway flyer yesterday, and called them about availability of some loaded .380 ammo for my mouse gun. They had plenty it sounded like.