Good heavens, another rebranding for PPU-headstamped brass?
Not everything is a "re-branding".
Some ammunition produced under contract by ammo companies (or even for their own brands) is held to different quality standards and may use different components than their 'standard' fodder.
Winchester Metrics is a good example.
When PPU was loading it, the 'Metrics' line of ammo was held to quality levels specified by Winchester, and used some of PPU's best 'non-match' bullets. It wasn't just re-branded PPU ammo.
Now that S&B is loading the 'Metrics' line for Olin/Winchester, the quality is even lower; but it isn't because it's straight-up S&B ammo. It's because it is held to the low standards Olin/Winchester's contract specifies.
You even get it with in-house brands in the states.
Federal is a great example. The American Eagle and Fusion lines of ammo, for example, use cheaper components than Federal's other lines. And, on top of that, they're held to lower quality standards. (Inspection costs money and drives up the price.)
It isn't just a cheaper bullet and a different color box. It really is a different level of quality.