BARNES 300AAC Blackout 120-Grain Ammunition – 20 Rounds

(29 customer reviews)

$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.

SKU: 88AB5E4B Category:
Description

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.

Reviews (29)

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