[実銃] 徹甲弾、貫通力実験第2弾！！25.4mmの鉄板で勝負

Previously, I tried bundling two 1/2inch plates and Japanese 7.7 WWII AP round did not penetrate. This time I got a solid 1inch A36 grade steel plate. Let's see how it will stand against various calibers.

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