Ammunition Components & Ballistics Manufacturing worked example

Primer Assembly Capacity Calculator at 99% primer assembly line uptime: a worked example

This scenario runs the primer assembly capacity calculator calculation on the strong side: 99% primer assembly line uptime, with every other input held at its documented default. a production manager needs to estimate accepted primer assembly output for a scheduled line period

The inputs for this scenario

  • Primer assemblies per machine cycle: 1,200 primers/cycle (unchanged)
  • Available assembly cycles in the period: 80 cycles (unchanged)
  • Primer assembly line uptime: 99 % (raised for this scenario; the documented default is 88)
  • Accepted primer assembly yield: 96 % (unchanged)

Working through the calculation

  • Applying the documented formula (Gross primer assembly capacity = primer assemblies per cycle × available assembly cycles) to the inputs above produces each figure below.
  • At this operating point the engine returns 91,238 primers for accepted primer assembly capacity, the number this scenario is built around.
  • At this operating point the engine returns 96,000 primers for gross primer assembly capacity.
  • At this operating point the engine returns 960 primers for capacity lost to downtime.
  • At this operating point the engine returns 3,802 primers for primer assemblies lost to rejects or holds.

How this compares with the baseline

  • Against the tool's baseline example, where primer assembly line uptime sits at 88% and the headline result is 81,101 primers, this scenario comes in 12.5% above the baseline at 91,238 primers.
  • Use it when committing finished-primer delivery dates, sizing primer buffer stock ahead of a load line, or evaluating whether a priming turret can feed downstream charging. Treat this as a target state: the delta against the baseline quantifies what the improvement is worth before you commit to chasing it.

Results at a glance

  • Accepted primer assembly capacity: 91,238 primers (headline result)
  • Gross primer assembly capacity: 96,000 primers
  • Capacity lost to downtime: 960 primers
  • Primer assemblies lost to rejects or holds: 3,802 primers

Run it with your numbers

  • Every input above is editable in the live Primer Assembly Capacity Calculator calculator, which recalculates instantly and can be shared with the inputs intact.

Last reviewed 2026-05-12.