PSA 300BLK upper (8in barrel), the "Dirt Squirrel" to 500yds: Practical Accuracy

Published on September 26, 2019
Duration: 12:49

This review tests the practical accuracy of a Palmetto State Armory 8-inch 300 Blackout upper receiver, nicknamed 'The Dirt Squirrel,' out to 500 yards. Despite using a Primary Arms optic with a reticle not optimized for 300 BLK, the build demonstrated consistent hits to 300 yards. Beyond 350 yards, significant drop required extreme holdovers, highlighting the limitations of the 8-inch barrel and 300 BLK cartridge for extended ranges.

Quick Summary

The PSA 8-inch 300 Blackout upper, 'The Dirt Squirrel,' demonstrated practical accuracy to 300 yards. Beyond 350 yards, significant bullet drop required extreme holdovers, making 500-yard shots difficult. The optic's reticle, designed for other calibers, exacerbated these challenges.

Chapters

  1. 00:00Introduction: The Dirt Squirrel Build
  2. 00:51Build Details: PSA 8" 300 BLK Upper
  3. 01:07Range Conditions & Ammo
  4. 01:41Optic Challenges: ACSS Reticle
  5. 01:59Shooting: 150-300 Yards
  6. 02:51Shooting: 350-400 Yards Drop
  7. 04:45Shooting: 450-500 Yards Extreme Holdover
  8. 07:19Post-Shoot Analysis & Effective Range
  9. 11:42Final Data & Summary

Frequently Asked Questions

What is the effective practical accuracy range for an 8-inch PSA 300 Blackout upper?

The PSA 8-inch 300 Blackout upper, nicknamed 'The Dirt Squirrel,' showed consistent practical accuracy to 300 yards. Beyond this, significant bullet drop required extreme holdovers, suggesting its practical effective range is best considered under 300 yards for reliable engagements.

What challenges arise when using a Primary Arms ACSS reticle with 300 Blackout?

The Primary Arms 1-6x Raptor ACSS reticle is designed for 5.56/.308 ballistics. When used with 300 Blackout, especially from an 8-inch barrel, it requires significant holdovers at longer distances (350+ yards) due to the different trajectory, making precise aiming difficult.

How does an 8-inch 300 Blackout barrel perform at 500 yards?

Hitting a 500-yard target with an 8-inch 300 Blackout barrel is possible but extremely challenging. It requires aiming very high ('into space') due to the bullet's trajectory drop, pushing the limits of the shooter and the optic's reticle.

What ammunition was used in the PSA 8-inch 300 Blackout accuracy test?

The test utilized Sig Sauer Elite Performance 300 BLK 125-grain Match ammunition. This load demonstrated consistent performance up to 300 yards from the 8-inch barrel before the trajectory drop became a significant factor.

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