|Place of origin||USA|
|Bullet diameter||.705 in (Script error mm)|
|Neck diameter||.725 in (Script error mm)|
|Shoulder diameter||.790 in (Script error mm)|
|Base diameter||.805 in (Script error mm)|
|Rim diameter||.870 in (Script error mm)|
|Case length||2.18 in (Script error mm)|
|Overall length||2.63 in (Script error mm)|
|Primer type||large rifle|
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. Only one rifle was ever chambered for it, and it was never offered commercially.
- 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.
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