B193BAA5-1DD8-B71B-0B7218ED7EEDE21C

Iron Ball (FOUS 151)

Iron ball.

This 3.2 oz. iron ball, a 1.3 caliber grapeshot, was possibly used in a swivel gun. The smallest type of cannon, a swivel gun could be mounted on a keelboat’s bow, or forward end, which in combination with the swivel, allowed for a wide arc of movement that covered river banks as well as the channel ahead. Of all ammunition discovered at Fort Union, grapeshot is the largest, ranging in size from .94” to 1.46” in diameter.

U.S. National Park Service

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Fort Union Trading Post National Historic Site, Code: FOUS

Fort Union Trading Post National Historic Site

NPS.gov Collection

Public Can View

Monday, January 1, 2018 6:04:49 AM

Monday, January 1, 2018 6:04:49 AM

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Canon Canon, Canon EOS DIGITAL REBEL XTi

1/25 sec at f / 4

38 mm

ISO 400

Friday, January 6, 2017 6:46:07 PM

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670.5 kB

Scenic