This review covers Challenger 12ga mini shells, featuring both #4 buckshot and #7.5 birdshot loads. The video demonstrates their use in a Mossberg 590 SBR, highlighting the necessity of the OPSOL TX Mini-Clip adapter for reliable cycling. Performance data includes chronograph readings (birdshot ~1187 FPS, buckshot ~1167 FPS) and ballistic gel testing, showing adequate penetration for defense. The shells offer increased capacity and a 14-pellet buckshot load.
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