CW Canister/Shell Shot?

[Kidstrace]

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Found in Central MS near known civil war sites, near an old limestone quarry. The four inch one looks like the end of an artillery shell.

Thanks

 

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[TheCannonballGuy]

Considering that you say you found them near an old quarry, they most probably are rock-crusher balls (also called Mill-balls, because they are used in a Tumbler Mill to turn chunks of stone into gravel).

However, you can clean the rust-encrustion off of them, measure them precisely with a caliper, weigh them precisely on a Postal Shipping scale (bathroom scales are too inaccurate), and see if there is an exact matchup for their size and weight here: www.civilwarartillery.com/shottables.htm