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IMPERIAL SPORTING .50" UPWARDS /
500 A-SQUARE
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IMPERIAL SPORTING .50" UPWARDS
500 A-SQUARE
500 · 4 headstamps · 1 scan
| Calibre | 500 |
| In the cabinet | IMPERIAL SPORTING .50" UPWARDS · 5 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 A-Square series of cartridges was designed in 1974 by Col. Arthur Alphin after a hunting incident with Cape buffalo using the .458 Winchester Magnum. He first designed the .500 A-Square to provide maximum stopping power. In order to gain more powder capacity and more power, all original A-Square cartridges were based on the .460 Weatherby case.
Provenance
2014Catalogued in the collection
2023Record last revised · 2023-05-11
Same drawer
