Ammunition Components & Ballistics Manufacturing worked example

Case Forming Yield Calculator at 99% target case-forming yield: a worked example

What does the result look like when target case-forming yield reaches 99%? The full calculation is worked below with real intermediate numbers. a manufacturing or quality engineer needs to compare accepted case output with the planned case-forming yield

The inputs for this scenario

  • Accepted formed case count: 96,500 cases (unchanged)
  • Total cases started: 100,000 cases (unchanged)
  • Target case-forming yield: 99 % (raised for this scenario; the documented default is 97)

Working through the calculation

  • Applying the documented formula (Actual case-forming yield = accepted formed case count ÷ total cases started × 100) to the inputs above produces each figure below.
  • At this operating point the engine returns 96.5 % yield for actual case-forming yield, the number this scenario is built around.
  • At this operating point the engine returns 2.5 points for yield gap to target.
  • At this operating point the engine returns 96,500 cases for accepted formed case count.
  • At this operating point the engine returns 100,000 cases for total cases started.

How this compares with the baseline

  • Against the tool's baseline example, where target case-forming yield sits at 97% and the headline result is 96.5 % yield, this scenario lands almost exactly on the baseline at 96.5 % yield.
  • A figure at this level is achievable when target case-forming yield is genuinely sustained, not just peaked for a shift. Yield alone does not distinguish defect modes, so a passing percentage can still hide a rising single defect like neck splits that needs attention.

Results at a glance

  • Actual case-forming yield: 96.5 % yield (headline result)
  • Yield gap to target: 2.5 points
  • Accepted formed case count: 96,500 cases
  • Total cases started: 100,000 cases

Run it with your numbers

  • Every input above is editable in the live Case Forming Yield Calculator calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.