Old thread, but always relevant, I guess. 12's & 20's are almost always cheaper, just due to volume sales. Large chains like Walmart can obviously order anything, since they hold an FFL like any other dealer. But they typically aren't putting a 28 gauge or.410 Pardner out there as a loss leader like they will a 12 gauge Pardner. Local Walmarts still have the 12 for $117 last time I looked, which admittedly was several weeks ago.