Modelling a wildcat cartridge in quickload?

[MJR]

How is this done? For example if you take a standard cartridge and want to predict the Ackley version? Is it a case of increasing the case volume ? What about the different shoulder angle?

Thanks.

[BlueBoy69]

If it's not already in QuickLOAD, you need QuickDesign to model, well design, the new case correctly. QuickDesign is a separate purchase.

You could modify the data for the base cartridge, adding in the new volume. This would crudely model the AI version of the case.

Obviously, in real life, the shape of the shoulder would affect how the propellant bed moves under the ignition pulse and how the case pressurises during propellant combustion. I can't remember how QuickLOAD treats this, but if I remember rightly it is modelled. The manual would say, but I'm at work at the mo and can't peruse it to check.