7.62x39 is out, 300 BO is in? PSA 300 BO KRINK.

Published on April 20, 2025
Duration: 34:27

This video provides an in-depth review and extensive testing of the Palmetto State Armory (PSA) 300 Blackout Krink. The reviewer explores the potential of 300 Blackout as a replacement for 7.62x39, focusing on ammo availability and cost. The PSA Krink is subjected to a high volume of fire with various ammunition types, including reloads, to assess its reliability, accuracy, and performance characteristics, particularly its effectiveness as a suppressed firearm.

Quick Summary

The PSA 300 Blackout Krink is presented as a viable alternative to 7.62x39 due to increasing ammo costs. It features an enhanced gas system for dwell time and performs reliably with various loads. With a suppressor like the Putnik, recoil is significantly reduced, making it a pleasant shooting experience, and accuracy is sufficient for 100-yard engagements.

Chapters

  1. 00:06Introduction & 300 BLK vs 7.62x39 Discussion
  2. 00:33Ammo Cost & Availability Comparison
  3. 01:42PSA 300 Blackout Krink Introduction
  4. 01:56Initial Firing & Reliability Check
  5. 02:45Shooting Suppressed & Unsuppressed
  6. 03:02PSA Krink Modifications & Setup
  7. 03:21Bolt & Internals Inspection
  8. 04:06Unsuppressed Full Power Ammo Test
  9. 05:03First Mags & Reliability Report
  10. 05:16Gas System & Dwell Time Explained
  11. 06:54Magazine Compatibility Test
  12. 07:42Recoil Comparison & Putnik Suppressor
  13. 08:35WBP vs FB Magazine Performance
  14. 08:50Optic Zero & Iron Sight Shooting
  15. 09:13Reliability Update & Subsonic Ammo Test
  16. 09:32Subsonic Ammo Sound & Feel
  17. 09:50Subsonic to Full Power Transition
  18. 10:16Deer Blind Scenario & Ear Pro
  19. 10:45Action Cycling with Subsonics
  20. 10:56Fast Shooting with Subsonics & Factory Trigger
  21. 12:00Reload Malfunction: Primer Issue
  22. 12:4050 Yard Subsonic Fly-By Test
  23. 13:41Overall Reliability & Ammo Cost Analysis
  24. 14:13Future Testing: Burndown & Gas Tube Stress
  25. 14:49Day 2: Continued Super Testing
  26. 15:16Continued Firing & Heat
  27. 15:5925 Yard Accuracy Test
  28. 17:19Suppressor Loosening Issue
  29. 18:11Malfunction Recap & Reliability Summary
  30. 18:24Mini Burndown Test: 7 Mags Non-Stop
  31. 19:38Burndown Malfunction: Failure to Extract
  32. 20:06Stuck Case & Barrel Check
  33. 20:29Chambering Another Round After Malfunction
  34. 21:38Burndown Completion & Heat Management
  35. 22:20Wood Furniture Heat Resistance
  36. 22:50Initial Condition & Lack of Lube
  37. 23:04More Subsonic Ammo Testing
  38. 23:51150 Grain Handload Test
  39. 24:35150 Grain Handload Malfunction
  40. 25:06220 Grain 300 BLK Comparison
  41. 25:34100 Yard Accuracy Test Setup
  42. 26:09100 Yard Target Shooting
  43. 26:45100 Yard Accuracy Results & Wind Factor
  44. 27:42Magtech 200gr Subs at 100 Yards
  45. 28:07Subsonic Zero Consistency
  46. 29:04Final Shots & Gong Target
  47. 29:31Total Rounds Fired & Summary
  48. 30:00Reliability & Reload Performance
  49. 30:30Reviewer Bias & Takeaways
  50. 31:15Ammunition Performance Review (2A Warehouse, Magtech)
  51. 31:56Putnik Suppressor Durability
  52. 32:30PSA 300 Blackout Krink Overall Performance
  53. 33:00Conclusion & Future Plans
  54. 34:02Decibel Meter Test (Amazon)

Frequently Asked Questions

How does the PSA 300 Blackout Krink compare to 7.62x39 in terms of ammunition availability and cost?

The reviewer notes that 7.62x39 is becoming harder to find and more expensive. 300 Blackout, especially remanufactured or brass-cased options, is becoming available at comparable prices, making it a potential alternative for shooters concerned about 7.62x39 costs.

What are the key features of the PSA 300 Blackout Krink's gas system?

The PSA 300 Blackout Krink features a gas system designed to increase dwell time, using a gas tube and low-profile gas block to siphon gas further down the barrel. This design is inspired by Russian AK variants and aims to improve cycling reliability with cartridges like 300 Blackout.

How reliable is the PSA 300 Blackout Krink with various ammunition types?

Over approximately 1200 rounds, the PSA 300 Blackout Krink demonstrated 'boring reliability.' Most malfunctions were attributed to reloaded ammunition, with only two bad rounds noted out of nearly 1000 reloads. The firearm itself performed consistently well.

What is the recoil experience like with the PSA 300 Blackout Krink, especially with a suppressor?

With the Putnik suppressor, the recoil is significantly reduced, described as a 'recoil delete cheat.' Compared to a 5.56 AK, the 300 Blackout has substantially more recoil, but it's comparable to 7.62x39, with a 'rubber bandy bounce feeling.'

How accurate is the PSA 300 Blackout Krink at 100 yards?

The reviewer found the PSA 300 Blackout Krink to be accurate enough, achieving approximately a 2-inch group at 100 yards under windy conditions. The 200-grain Magtech subsonic ammunition maintained point of aim/point of impact at this distance with the same zero as full-power loads.

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