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

Published on September 26, 2019
Duration: 12:49

This guide details a long-range engagement technique for the PSA 300 BLK 'Dirt Squirrel' build, emphasizing the use of extreme holdovers with a mismatched optic reticle. It covers target acquisition, environmental compensation, and shot execution for distances up to 500 yards. The analysis, presented by Henry Chan, highlights the practical limitations and capabilities of the 8-inch 300 BLK system at extended ranges.

Quick Summary

The PSA 300 BLK 8-inch 'Dirt Squirrel' upper can achieve practical accuracy to 500 yards, but requires advanced shooter skill and extreme holdovers due to the cartridge's trajectory and optic limitations. For consistent performance without excessive adjustments, 300 yards is considered a more practical effective range for this setup.

Chapters

  1. 00:00Introduction & Acquisition
  2. 00:51The 'Dirt Squirrel' Build
  3. 01:07Range Conditions & Ammunition
  4. 01:41Optic & Reticle Challenges
  5. 01:59Shooting: 150 to 300 Yards
  6. 02:51Shooting: 350 to 400 Yards
  7. 04:45Shooting: 450 to 500 Yards
  8. 07:19Post-Shoot Analysis
  9. 11:42Final Data & Summary

Frequently Asked Questions

What is the effective range of an 8-inch 300 BLK upper like the PSA 'Dirt Squirrel'?

The PSA 300 BLK 8-inch upper, 'The Dirt Squirrel,' demonstrated practical accuracy to 500 yards, but required extreme holdovers. Analysis suggests 300 yards is a more practical effective range for consistent performance without excessive hold adjustments.

Can a 300 BLK round from an 8-inch barrel reliably hit targets at 500 yards?

Yes, it is possible, as shown in the test. However, it requires significant shooter skill, precise holdover estimation using the reticle, and acceptance of reduced impact energy compared to shorter ranges or different caliber/barrel combinations.

What challenges arise when using a 1-6x scope not calibrated for 300 BLK at long range?

Using a scope like the Primary Arms 1-6x Raptor ACSS, designed for 5.56/308, with 300 BLK at extended distances necessitates extreme holdovers. The reticle subtensions do not directly correspond, forcing the shooter to aim far above the target, often beyond the optic's designed maximum range.

What ammunition was used for the PSA 300 BLK accuracy test?

The test utilized Sig Sauer Elite Performance 300 BLK 125gr Match ammunition. This specific load showed consistent performance at closer ranges but highlighted the ballistic limitations of the 8-inch barrel at distances beyond 350-400 yards.

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