http://www.midwayusa.com/product/708769/hornady-black-ammunition-450-bushmaster-250-grain-ftx-box-of-20
http://www.hornady.com/store/450-Bushmaster/
https://www.youtube.com/watch?feature=player_embedded&v=HiaobNnUCRQ
Appears to be the same tried-n-true 250gr FTX .450 bushmaster ammo, only with new box graphics, and a lowered MSRP (by four dollars and change). Remains to be seen if there are actually any differences in the ammo itself. If it isn't vaporware (like the Hog Hammer ended up being), we can certainly take measurements and do a pull down.
If it is exactly the same, I'm at a loss for the reasoning behind this, unless they simply planned to phase out the old packaging? Only time will tell...