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30 DUPLEX (CAL. 30 SERVICE CASE) PROJECT SALVO
30-DUPLEX-1-FULL
30-DUPLEX-1
30-DUPLEX-2
30-DUPLEX-2-FULL
30-DUPLEX-3
30-DUPLEX-3-FULL
30-DUPLEX-4
30-DUPLEX-4-FULL
IMPERIAL MILITARY .30" UP TO .399"

30 DUPLEX (CAL. 30 SERVICE CASE) PROJECT SALVO

30 · 4 headstamps · 4 scans
Calibre30
In the cabinetIMPERIAL MILITARY .30" UP TO .399" · 8 images
Headstamp of 30 DUPLEX (CAL. 30 SERVICE CASE) PROJECT SALVO
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
30-DUPLEX-1 30-DUPLEX-2 30-DUPLEX-3 30-DUPLEX-4

Research notes

Testing with the Cal. 30 Service case (30-06) started as early as July 1953 at Johns Hopkins University for pre-Salvo tests. These loads were done on commercial cases. In 1954 development moved to cases with elongated necks but resumed again in 1956 with the standard service case. The red-tipped specimen is a triplex loading.

Provenance

2016Catalogued in the collection
2023Record last revised · 2023-05-11
Same drawer

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