.300 BLK - 115gr Tumble upon impact ammunitionÂ
Hard-hitting performance optimized for the .300 BLK platform
The Maxim Defense .300 Blackout 115gr TUI® Ammunition is a match-grade, lead-free rifle round designed to deliver reliable accuracy and decisive terminal performance across a wide range of shooting applications. Built around a Solid Copper Spun (SCS®) projectile and patented  Tumble Upon Impact™ (TUI®) technology, this ammunition is designed to penetrate deeply and deliver rapid energy transfer upon impact while maintaining excellent accuracy and velocity. Manufactured in the USA with military-grade hard primers, it delivers consistent, reliable performance for hunting, law enforcement, and defensive applications—especially in areas where traditional lead projectiles are prohibited.
FEATURES:
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115gr solid copper TUI® projectile for controlled terminal effects
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Lead-free construction for restricted hunting zones
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Optimized for short-barrel .300 BLK platforms
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High velocity with manageable recoil
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Exceptional accuracy and penetration
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Military-grade hard primers for reliable ignition
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Match-grade consistency shot after shot
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| .300 BLK - 115gr. TUI SBA Ammunition | |
| Caliber | .300 BLK TUI® |
| Grain | 115 |
| Projectile | Solid Copper Spun (SCS®) |
| Test Barrel | 16" / 1:7.5 |
| Barrel Velocity | 2219 FPS |
| Size | OAL: 1.032" / COAL: 2.036" |
| 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 info@maximdefense.com, 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.
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