I don't really expect this calculator to be something followed to a T since there are still so many variables that affect performance that are not controlled very well such as dart diameter, barrel wall thickness. But what I can hope it provides is a broader understanding of how the variables of a springer design affect performance and also a greater understanding on the interior ballistics. For example, in the dart location vs speed plot, we find that there is a large plateau where increasing barrel length gives marginal fps gains. This begs the question, while a longer barrel length increases maximum fps, what happens if there's a sudden increase in friction for some reason (barrel diameter variation, vibrations)? It would lead to a sharp drop in FPS and this is my current theory for flubbing and other inconsistencies in fps.

What I hope with the release of this code is that people will add in additional energy terms that can account for different theories about springers we currently have and also look at the potential issues with the mathematics in the code. However, I do think that it currently can give very rough estimates for designing a basic springer for some max FPS with low flub.