Cannonball help… Rev War - HMS Augusta, 1777

[digi-shots]

A friend of mine bought this at a military show a few years ago… they are getting ready to sell it and I’m interested.. The cannonball was found while dredging in the Delaware River. He indicated it came from the HMS Augusta, a British Rev War frigate which was sunk during the Battle of Red Bank in 1777.

I believe the Augusta was fitted with 6#, 9#, 12#, and 18# cannon. Does anyone have actual measurements for British Rev. War solid shot.. especially the 9# and 12#.

The cannonball measures a little over 4”… (maybe 4 3/8”?). I’m trying to figure a way to get an accurate measurement. It seems to be encrusted in a stone type sediment and measuring across the top for a diameter is difficult. As you can see from the photos, there is a seam.. hopefully that’s ok for Rev War shot.

Thanks for looking and your comments.

 

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[pepperj]

Have a look at this post up from the past.
The reply post #5 explains a lot-and should be taken as factual in determining if one is or isn't.

✅ SOLVED - Is this a authentic Cannonball?

Ok y’all I need your help. This is a local ad on Facebook. Several people are interested in it. The person who is selling this is elderly and doesn’t have a weight or measurement. It belonged to her husband. My husband thinks it is 4.5 inches in diameter by looking at the squares on the paper...

www.treasurenet.com

 

[digi-shots]

Thanks.. I checked that posting. I saw that there was comment made that the seam was not 100% a determination and it referred to Civil War shot.

I read that there was a difference between American And English solid shot during the Rev War…. England had been making 2 part molded shot and had more or less perfected them to a point where the mold mark was almost invisible. The Americans also has 2 part molded solid shot but the line was visible.

He’s a try at measuring circumference.. ?
13 5/8 or 13.625 = 4.337” diameter