The Americans used shotguns in WW1. What ammo did they use? Did

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What types of shotguns available in the US have the ability to attach a bayonet, other than the WW1 trench shotgun? - Quora

In the US military, when shotguns are issued, do they use standard buckshot, slugs, or something else? - Quora

Did you know that the last trench gun survived until the Iraq War?

A rough guide of the costs of guns during WWII

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What shotgun did Americans use before the Winchester 1887 shotgun? - Quora

How much ammo did a standard Union soldier in the Civil War carry with them? - Quora

What if I use modern shotgun ammo in a pre-WW 1 shotgun with dual hammers? - Quora

During the 1800s, how much ammunition could a bandolier hold? - Quora

The Trench Shotguns of WWI Were Uniquely American