Home /
IMPERIAL SPORTING .50" UPWARDS /
550 EXPRESS
Click to zoom
IMPERIAL SPORTING .50" UPWARDS
550 EXPRESS
550 · 1 headstamp · 1 scan
| Calibre | 550 |
| In the cabinet | IMPERIAL SPORTING .50" UPWARDS · 2 images |
Reading the headstamp
12 o'clockMaker's name or factory code
6 o'clockCalibre or year of manufacture
CentrePrimer — Berdan or Boxer, and any seal colour
Research notes
The 550 Express is the shortened version of the 550 Magnum that was developed by Neal Shirley of Yuma, AZ and is based on the 460 Weatherby case that was shortened to fit in a standard Mauser action.
Provenance
2014Catalogued in the collection
2026Record last revised · 2026-01-10
Same drawer
