full brass cased 12 gauge in a semi auto?

i have always wanted to try my hand at seeing if i can get some full solid brass cased shells of 12 gauge to feed reliably in a magazine fed semi auto shotgun- more precisely a AK (saiga 12)

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Tokarev TAR 12P 12 Gauge Semi-Auto Shotgun 3 Chamber [FC-723551440087] - Cheaper Than Dirt

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What case is this? wildcat off of a 5.56x45

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What case is this? wildcat off of a 5.56x45

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