.300 BLK - 190gr TUI® subsonic ammunition  Subsonic precision with maximum control The Maxim Defense .300 Blackout 190gr TUI® Subsonic Short Barrel Ammunition is a match-grade, lead-free rifle round designed for shooters who prioritize quiet operation, accuracy, and controlled terminal performance. Built around a Solid Copper Spun (SCS®) projectile and patented Tumble Upon Impact™ (TUI®) this ammunition delivers consistent penetration and effective energy transfer at subsonic velocities. Optimized for suppressed rifles and short-barrel platforms, it provides reliable cycling, minimal recoil, and proven accuracy—making it an excellent choice for defensive use, professional applications, and suppressed shooting environments.FEATURES: 190gr solid copper TUI® projectile for subsonic performance Optimized for suppressor use Subsonic velocity for reduced noise signature Reliable cycling with or without a suppressor Exceptional accuracy for a heavy subsonic load Lead-free construction for restricted environments   Military-grade hard primers for consistent ignition Click here for more info.300 BLK - 190gr. TUI Subaonic SBA .300 BLK - 190gr. TUI Subsonic SBA Ammunition Caliber .300 BLK TUI® Grain 190 Projectile Solid Copper Spun (SCS®) Test Barrel 16" / 1:7.5 Barrel Velocity 960 FPS Size OAL: 1.530" / COAL: 2.225" Quantity 20/Box At Maxim Defense, we take pride in designing and manufacturing high-performance firearms, suppressors and accessories that deliver exceptional reliability and durability. Your feedback and positive reviews are important to us, as they help us continually improve our products. If you experience any issues with your Maxim Defense products, please contact us at [email protected], and we’ll work with you to resolve the matter as quickly as possible. Please note that we do not cover damage caused by the installation of other manufacturers’ products. Reviews There are no reviews yet. Be the first to review “.300 BLK – 190 GR. TUI SUBSONIC” Cancel replyYour email address will not be published. Required fields are marked *Your rating * Rate… Perfect Good Average Not that bad Very poor Your review *Name * Email * Save my name, email, and website in this browser for the next time I comment.