What this program does
Given the various inputs listed above, the program uses closed bomb data for the powder to simulate the evolution of the gas pressure and the velocity of the bullet as it travels up the barrel. This program is a numerical simulation. It makes no prior assumptions about pressure rise or any other variable. It just runs the basic physics of what happens next as the virtual charge of powder burns. A summary of the results are given. Graphs are plotted for pressure -vs- time, pressure -vs- distance along the barrel, and bullet velocity -vs- distance along the barrel.
Using the program
This simulator is not intended to replace the relevant reloading manual as a guide to good starting loads or safe maximum loads. You should follow safe reloading practices at all times.
While this simulator is designed to be intuitive and easy to use, it is strongly suggested that you read the manual for this simulator. It will help you get sensible and realistic results.Usable case capacity to be entered is the capacity behind the loaded bullet, NOT the case capacity to the case mouth. See a list of case capacities to get you started and read more about case capacities in the manual (see link above).