Maxim Defense MXM49143 Tumble Upon Impact (TUI) Subsonic 8.6Blackout 285gr Solid Copper Spun 20 Per Box/25 Case

The Maxim Defense 8.6 Blackout 285gr TUI Subsonic Ammunition is a match-grade, lead-free cartridge designed to deliver extreme penetration and devastating terminal performance at subsonic velocities. Built around a Solid Copper Spun (SCS) projectile and patented Tumble Upon Impact (TUI) technology, this ammunition penetrates bone and dense tissue before tumbling aggressively in soft tissue to create massive internal disruption. Optimized for short barrels, fast twist rates, and suppressed platforms, it delivers quiet operation, consistent accuracy, and confidence-inspiring performance for serious hunters and specialized shooters.