400 Whelen
Historical Notes:
Of the various cartridges named after the late Col. Townsend Whelen, the 400 is
the only one he actually developed. According to Phil Sharpe (Shapre, Phillip B.
Complete Guide to Handloading, Funk & Wagnalls Co., 1941, p398.), Col.
Whelen developed this cartridge while he was commanding officer at Frankford
Arsenal during the early 1920's. The 400 Whelen is based on the 30-06
case necked up.
General Comments:
The 400 Whelen was not a successful development because when the 30-06
case is neck is expanded to this size it leaves only a slight shoulder which
gives rise to serious headspace problems. Nonetheless, rifles of this caliber
were used in the US, Canada, and Africa on big game with excellent results. The
maximum caliber that the 30-06 case can be necked up to
without creating headspace problems when cases are resized is 375.
Source: Cartridges of the World
| 400 Whelen Reloading Data | ||||
|---|---|---|---|---|
| Bullet (grs.) | Powder / (grs.) | MV | ME | Source |
| 300 | IMR3031 / 60/0 | 2265 | 3415 | N/A |
| 350 | IMR3031 / 57.0 | 2100 | 3430 | N/A |
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