Several Baer Frankle inputs are calculated by Mass Properties based on the model. For our example we get the following data from Mass Properties that we use in our Baer Frankle Analysis:

• Projectile Mass
• Projectile Axial Inertia
• Rotating Band Definition
• Propellant Volume since there is a Propellant Component Defined.

Baer Frankle Interior Ballistics is commonly run without modeling either the case or propellant. If you do model the case and propellant then mass properties calculates the propellant volume which can be copied in as the chamber volume. Since the chamber volume is hard to measure this is a great way to get an accurate value. Our example projectile does have the propellant modeled so we do replace the Chamber volume with the Propellant Volume that Mass Properties calculates.

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