Magtech Shotshell Hulls 410 Bore 2-1/2 Brass Box of 25

My Granddad's Marble Game Getter is soon to be back in the field.

Magtech 36 Gauge (.410) 2-1/2 Shotshell Brass Large Pistol

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Ballistic Products Multi-Hull Shotshell Hulls 410 Bore 2-1/2 Primed

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40 Caliber 410 Pumpkin Ball Round – Dedicated to the Smallbore Shotgun

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Shotgun Brass - 410Ga - 2-1/2in - The Gun Works Muzzleloading Emporium

BioAmmo N.7 Steel Dove and Target 12 Gauge 1 oz 2 3/4'' Shotgun Ammunition BRS2870 $1.00 Off

Magtech Brass 410 Bore Unprimed Box of 25 - Graf & Sons

410 Brass Slug Development

Why don't shotgun slugs and shot use full metal jackets and why don't other guns use plastic casings? I believe shotgun shells were originally full metal. - Quora

As Deadly as it is Beautiful: Brass Based Expanding and

Ammunition - Shotgun - Slugs, Buck and Steel - Page 1 - Canada

Rifled Slug Shotgun Shells with 223 Caliber Bullets Along with 45