ORIGINAL: Underclocked
Using the top formula, I get 1984.13 fps. ??
Did you know the windows calculator can be a scientific calculator with a LOT more functions? Open the calculator, go up to View, select scientific.
UC,
My program gets exactly the same value for a 200g bullet and 100g charge. I added that weight in the last run. I didn't have it in earlier runs. I also verified with the scientific calculator.
Chap