I buy my 9mm plinking ammo from Wal-Mart too. Their WWB is right at $20 now for 100 rounds. It's a bit dirtier than others, but I haven't had a single issue yet in my Taurus. They get a case in every now and then, but they ration it out to 1 box per customer. As much as I hate that policy, I'm glad they are doing it. I hate it when I see some tool on KSL Classifieds re-selling that same ammo for $30/box. I ended up with 3 boxes last week by doing drop-ins every day on my way home from work. I have a decent stash, but I always want more.