My BCC fun nites have the same issue. They are also loose in the Chipco racks I have (about 1/2 to 3/4 of a chip space remains) , so I moved them to a case.
Edit: double-checked, as I have 20 Aquasino 25's. They are about a 1/2 chip taller than my Fun Nites in a stack of 20, but are still slightly loose in a Chipco rack. So, maybe a 1/4 chip worth of room.