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IMPERIAL SPORTING .30 UP TO .349" /
338-378 KT
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IMPERIAL SPORTING .30 UP TO .349"
338-378 KT
338-378 · 2 headstamps · 1 scan
| Calibre | 338-378 |
| In the cabinet | IMPERIAL SPORTING .30 UP TO .349" · 3 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 338-378 KT was designed by Elmer Keith and Bob Thompson in the 1960's as a long range elk cartridge to be used with slower burning powders available at that time. They kept the Weatherby double radius shoulder but shortened the case 1/4" to better suit case capacity to the burn rate of the slower burning powders. Performance mirrors the modern 338 Rem Ultra Mag. The 338-378 Weatherby is based on the 338-378 KT.
Provenance
2014Catalogued in the collection
2023Record last revised · 2023-05-11
Same drawer
