I'm trying to add 338-06 Ackley 40 degree to the cartridge database in QuickDesign. I think I have entered everything correctly (no errors shown on case drawing page), but I get 1.3 gr of water capacity. This hasn't been a problem on other cartridges I entered.

Any suggestions on problem-solving it? I have read the manual, and the discussion on water capacity didn't solve it.

Fremont,
I haven't used Quick Design, but don't you get your cases water capacity by filling a fired case with water, then seating a bullet to your guns COAL, then remove the bullet and re-weigh the case with water in it? Then multiply this water weight by .85?
I've used this method to make sure my starting loads make sense when creating a new load. This number would be way off from 1.3gr, so maybe I am thinking of something else when you talk about "water capacity."