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

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Did the Civil War era (and earlier) double barrel shotguns use shells? If not, how were they loaded? - Quora

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

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

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Did the Civil War era (and earlier) double barrel shotguns use shells? If not, how were they loaded? - Quora

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

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Was American use of shotguns in the trenches of WW1 objectionable as the Germans claimed? - Quora

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