How Does A Service Such As Loomis Operate?

The county I live in has 2 towns of 20,000 that are about 40 miles apart. Within another 30 miles, and across a state line, is an area of perhaps 600,000.

The banks here do not always have a lot of rolls of half dollars, but they are in shotgun rolls of 2 different colors, so there must be more than one service. They sometimes have CWR's, and even those are usually duds.

There is a casino in one of the smaller towns that will take $1500 worth of coins without question or charge. I am not that smart, so I am sure other hunters have figured out that trick.

If I were to have my bank order a box, what is the likelyhood of getting everybodys culls from the casino? I would like to juggle 2 boxes per month, dumping one to finance the other.

Where would I ask around to learn about the route coins travel in my area?