Bullets wiggle
The bullets wiggle, but other than that, I believe what davevabch said "I contacted Remington today. They said they have pulling off the shelves the 550 bulk pak. They now sell the "New and Improved" ammo with the new box. They said they completely revamped the manufacturing process, and using a new mix of powder and primers." I wouldn't be surprised if they're using Eley primers as someone suggested. Now if they can stop the little play in the bullet which CCI doesn't have they will be the first bulk rate ammo with the quality of CCI. CCI bullet does not wiggle. All bulk ammo does wiggle probably because they through them in a pile together. The wiggle did cause me to have one failure to feed out of about 80 rounds. It just stuck in the top of the mag, maybe because the bullet wiggled or wedged. They can fix that. Also, CCI has variance in their weights just like Remington, but it isn't quite as much. I believe the New and Improved is in a class by itself, being bulk priced ammo.