Does anyone out there know the math formulas used for Thorniley Stopping Power, foot pounds of energy, or Recoil? I know the calculations are available through the Ballistician's Corner, but I'm building a spreadsheet to programmatically compare different bullets, calibers, etc. using several formulas. I'm missing these formulas. I thought it might be handy in evaluating different guns and/or loads for particular situations. Thanks in advance.