Maxim Defense 8.6 Blackout 235gr TUI SBA, 20-Round Box

Maxim Defense (part no. MXM-49150) loads this 8.6 Blackout round with a 235-grain solid copper bullet built around their Tumble Upon Impact (TUI) technology, the lighter of two 8.6 Blackout TUI weights Maxim offers alongside their 285-grain load. Maxim Defense developed this SBA (Short Barrel Ammunition) load in partnership with Fort Scott Munitions specifically to address short-barrel rifles’ typical loss of velocity and terminal performance, engineering the TUI projectile to keep tumbling for its wound effect all the way down to 500 fps. In rifle ammunition built specifically for short-barrel platforms, this is the lighter, faster option in the line.

Key Specifications

• The chambering is 8.6 Blackout, a heavy-bullet short-barrel cartridge.
• The bullet weighs 235 grains, lighter than Maxim’s 285-grain 8.6 Blackout TUI load.
• The projectile is solid copper, using Tumble Upon Impact (TUI) technology.
• Maxim Defense developed this load in partnership with Fort Scott Munitions.
• This is marketed as SBA (Short Barrel Ammunition), optimized specifically for SBRs.
• The TUI bullet continues to tumble down to 500 fps, well below typical impact velocities.
• The cost works out to about $2.65 per round at the listed box price.
• Each box holds 20 rounds.
• Maxim Defense is primarily known for SBR suppressor hosts and buffer systems, with ammunition as a newer product line.

Frequently Asked Questions

Why choose 235gr over Maxim’s 285gr 8.6 Blackout load? The lighter 235-grain bullet moves at a higher velocity, a common trade-off shooters weigh against the heavier 285-grain option’s additional bullet mass.

Does the TUI bullet expand or fragment? Neither in the traditional sense. It’s engineered to tumble on impact, and Maxim Defense markets the resulting wound cavity as exceeding the standards of both expanding and fragmenting projectiles.

Buy Maxim Defense 8.6 Blackout 235gr TUI SBA Ammo

Short-barrel rifles need ammunition engineered around their specific velocity loss, and this lighter TUI load is purpose-built for exactly that. Order from our Lubbock, Texas gun shop and it ships fast to your door.