The Sig Sauer Elite Ball 300 Blackout 125gr ammunition provides high-precision supersonic performance, smooth feeding, and dependable cycling for range training and target practice. Formulated specifically for AR-15 platforms and modern sporting rifles chambered in .300 AAC Blackout, this factory load is engineered to match the velocity and flight dynamics of Sig Sauer’s hunting rounds, making transitions from target practice to the field seamless.
Loaded with a 125-grain Full Metal Jacket (FMJ) projectile into premium, reloadable brass casings, this Sig Sauer 300 Blackout 125 grain ammo achieves a rated muzzle velocity of 2,145 FPS. Combined with clean-burning powders and match-grade primers, it minimizes barrel fouling while maintaining flat trajectories and tight downrange grouping whether shooting unsuppressed or paired with target suppressors.
Whether you are checking current market availability for a Sig 300 Blackout 125gr FMJ 20 round box, comparing Sig Sauer 300 Blackout 125gr price options, or preparing to buy Sig Sauer 300 Blackout FMJ online, this 20-round box provides consistent accuracy and clean performance shot after shot.
Key Specifications & Features
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Supersonic Muzzle Velocity: Rated at 2,145 FPS for rapid flight times, reduced trajectory drop, and flat shooting performance.
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125-Grain FMJ Bullet: Aerodynamic full metal jacket projectile ensures smooth magazine feeding and clean hole placement on paper targets.
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Premium Reloadable Brass: Manufactured to exact SAAMI dimensional standards for reliable feeding, positive extraction, and extended case re-loadability.
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Clean-Burning Powders: Formulated to reduce carbon build-up in gas systems and suppressors during extended range sessions.
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20-Round Box Convenience: Compact 20-round packaging makes it ideal for sight-in sessions, tactical drills, and optical zeroing.
Technical Specifications
| Specification | Technical Details |
| Manufacturer Part Number (MPN) | E300B1-20 |
| Caliber | .300 AAC Blackout (.300 BLK) |
| Bullet Weight | 125 Grain |
| Bullet Style | Full Metal Jacket (FMJ) |
| Velocity Type | Supersonic |
| Muzzle Velocity | 2,145 FPS |
| Case Material | Premium Brass (Reloadable) |
| Primer Type | Centerfire |
| Box Quantity | 20 Rounds per Box |
| Quantity | 500 rounds, 1000 rounds |
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