[IYAS9YAS]

Wal-Mart isn’t weighing the packages. The vendors are.

Great Value is Walmart's store brand. If they aren't doing QC checks, it's on Walmart.

[FLT-bird]

OK for Great Value and other store brands then yes.

[varyouga]

The “store brands” are usually made by outside vendor(s) and branded by the final packer for whatever store ordered it. Walmart could be getting shorted and needs improved QA