BARNES 300AAC Blackout 120-Grain Ammunition – 20 Rounds
$29.99
Equip your firearm with the BARNES 300AAC Blackout 120-Grain Ammunition. This ammo boasts 120 grains and a JHP FB bullet style. Comes with 20 rounds per box.
Atomic Sierra MatchKing 6.5 Creedmoor 142-Grain – Precision Rifle Ammunition
Product Overview
Engineered for elite long-range performance, the BARNES 300AAC Blackout 120-Grain Ammunition – 20 Rounds combines Sierra’s legendary MatchKing bullet technology with precision manufacturing for sub-MOA accuracy. This load features a high-BC (0.565 G1) 142-grain projectile that dominates in PRS competitions, F-Class matches, and precision hunting applications. Like the BARNES 300AAC Blackout 120-Grain Ammunition – 20 Rounds, it delivers exceptional ballistic consistency with reloadable brass casings and consistent velocities (SD < 10), making it a top choice for shooters who demand repeatable performance at 1,000+ yards.
For personal protection, check out our Hornady Critical Defense FTX Rifle Ammunition – 20 Rounds, designed for reliable performance and consistent expansion.
Key Features & Benefits
The Sierra MatchKing bullet features an open-tip match (OTM) design that delivers tournament-proven accuracy and exceptional aerodynamic efficiency. Its 142-grain heavy projectile is specifically optimized for 1:8″ twist barrels, offering 15–20% better resistance to wind drift compared to lighter 6.5 Creedmoor loads. With a high ballistic coefficient of 0.565 (G1), this round flies flatter and retains energy more effectively than competing options. Additionally, it uses match-grade brass that is fully reloadable and features uniform primer pockets, ensuring consistent performance for handloaders.
Versatile Performance – Perfect for:
- PRS/NRL Competitions
- Precision Deer & Varmint Hunting
- Long-Range Training Sessions
Why Competitive Shooters Choose This Round
Championship-Level Accuracy
The MatchKing’s tight tolerances deliver 0.3-0.7 MOA groups in quality rifles like Bergara HMR or Tikka T3x.
Engineered for Extreme Distance
With 2,675 FPS muzzle velocity, it stays supersonic past 1,300 yards – outperforming lighter 6.5 CM loads in crosswinds.
Reloader’s Dream
The annealed, boxer-primed brass survives 10+ reloads, saving money for high-volume shooters.
Wind-Bucking Design
The boat-tail profile and heavy weight reduce wind deflection by 22% vs. 130gr bullets at 1,000 yards.
Technical Specifications
- Caliber: 6.5 Creedmoor
- Bullet: Sierra MatchKing 142gr (OTM)
- Muzzle Velocity: 2,675 FPS
- Muzzle Energy: 2,258 ft-lbs
- Brass: Reloadable, Boxer-Primed
- Optimal Twist Rate: 1:8″
FAQs
Is this good for PRS/NRL competitions?
Absolutely. The non-magnetic MatchKing meets competition rules while delivering consistent SD/ES numbers that pros demand.
Can I ethically hunt deer with this ammo?
Yes, but requires precision shot placement (vitals only). The OTM bullet prioritizes accuracy over expansion – we recommend <400 yard shots.
How does it compare to Hornady ELD Match?
Both are excellent, but the 142gr MatchKing has a higher BC (0.565 vs 0.536) for better long-range performance. Hornady may expand slightly better for hunting.
What’s the real-world accuracy potential?
With a quality barrel, expect:
• 0.3-0.5 MOA (benchrest setups)
• 0.5-0.7 MOA (field positions)
Are primers crimped?
No – non-crimped for easy reloading with standard equipment.


MAECENAS IACULIS
Vestibulum curae torquent diam diam commodo parturient penatibus nunc dui adipiscing convallis bulum parturient suspendisse parturient a.Parturient in parturient scelerisque nibh lectus quam a natoque adipiscing a vestibulum hendrerit et pharetra fames nunc natoque dui.
ADIPISCING CONVALLIS BULUM
- Vestibulum penatibus nunc dui adipiscing convallis bulum parturient suspendisse.
- Abitur parturient praesent lectus quam a natoque adipiscing a vestibulum hendre.
- Diam parturient dictumst parturient scelerisque nibh lectus.
Scelerisque adipiscing bibendum sem vestibulum et in a a a purus lectus faucibus lobortis tincidunt purus lectus nisl class eros.Condimentum a et ullamcorper dictumst mus et tristique elementum nam inceptos hac parturient scelerisque vestibulum amet elit ut volutpat.
29 reviews for BARNES 300AAC Blackout 120-Grain Ammunition – 20 Rounds
There are no reviews yet.