At that price there is much better/more prove/known-quantity ammunition available. You just have to be willing to order it online in case quantity.
$13/50 is $260 + tax for 1,000 rounds.
You can get pretty good (probably better) ammo for $240-$260 per 1,000 shipped online.
For Walmart I'll stick to buying Federal Aluminum case or equivalent for cheap when it's there.