.70-150 Winchester

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.70-150 Winchester
Place of originUS
Service history
In serviceNone
Production history
DesignedAround 1888
Bullet diameter.705 in (17.9 mm)
Neck diameter.725 in (18.4 mm)
Shoulder diameter.790 in (20.1 mm)
Base diameter.805 in (20.4 mm)
Rim diameter.870 in (22.1 mm)
Case length2.18 in (55 mm)
Overall length2.63 in (67 mm)
Rifling twist1:16
Primer typelarge rifle

The .70-150 Winchester is a hypothetical American centerfire rifle cartridge.

Appearing on cartridge boards of the Winchester Repeating Arms Company in 1888, it may have been nothing more than a display novelty based on a brass 12-gauge shotshell (rather than the paper cases common at the time, or plastic frequently seen today), shortened and necked-down slightly.[1] Only one rifle was ever chambered for it, and it was never offered commercially.[2]

See also[edit]


  1. ^ Barnes, p.118, ".70-150 Winchester"; Foster, Paul, Gun Digest 1952, p.173.
  2. ^ Barnes, p.118, ".70-150 Winchester".


  • Barnes, Frank C., ed. by John T. Amber. ".70-150 Winchester", in Cartridges of the World, pp. 118 & 124. Northfield, IL: DBI Books, 1972. ISBN 0-695-80326-3.