How many coin suppliers are you pulling from? Might do you good to get boxes from Dunbar, Loomis, Brinks and Garda. Find out which supplier is getting more silver for you.
That's a ruff start. Your probably just searching through the dumps of the last person who Crh in your area. Could have been years ago. Eventually you will get through to some freshies
The boxes are sealed with the tape and the rolls are mwr and super tight. I order my boxes from brinks, but that is the only supplier I can order from right now. If I get skunked on the next 3 boxes I might just order boxes of dimes instead.