These are pictures from a mom and pop shop called Runzo’s. They are 20 miles at most from the fin. These are all close to $200 cheaper. And this mom and pop shop has no buying power.
The mom & pop shop may have lower overhead than a large store or chain. While the mom & pop may have less buying power, they may be satisfied with less profit per sale. Some merchants believe a "fast nickle" is better than a "slow dime."
My LGS has had 9mm, 40, and 223 /556 pretty much at all times for the last year. People would come in wondering why he was selling ammo so cheap while FFF was reportedly $30 + more per box on the same calibers. And this is about hour and a half north of there. His building is maybe 350 sq ft. But evidently he's got a good supply and he's not greedy.