Just remember that the Winchester Xpert is $12.87 for 500 rounds. The green box Remington 550 is 550 rounds for about $13.80 (I think). It works out to almost the same price. The Federal 550 box is about $15 and change, so the per round cost is actually the highest of the three.
The Rem and Federal depends on what Wal-Mart you go to.
The one in Hammond, IN sells the Federal for $15 and the Rem for $13.xx.
The one in Scherville, IN sells them the opposite.
I have not aksed about this and have not gone to both the same week but I think the price may flip/flop on both items depending on the quanity.
Wow that is really strange since the pricing is all controlled by the corporate office. Either way I believe the Federal is 10x the ammo compared to the Remington. I'll never buy the Remington again.