300 BLK - Powder Coated Bullets with Reloder 7

Published on April 3, 2017
Duration: 11:54

This video details the testing of Reloder 7 powder for 300 Blackout reloads using powder-coated lead bullets. The instructor addresses historical feeding issues with such bullets and systematically tests different powders. Reloder 7 is evaluated with both 160-grain supersonic and 202-grain subsonic loads, with chronograph data and shooting performance observed. The instructor concludes that Reloder 7 performed without issues in this test.

Quick Summary

Reloder 7 powder was tested in 300 Blackout with powder-coated bullets, addressing historical feeding issues. Supersonic loads (17.5 gr Reloder 7, 160 gr bullet) averaged 1570 fps, while subsonic loads (11.3 gr Reloder 7, 202 gr bullet) showed variability. No feeding problems or fouling were observed.

Chapters

  1. 00:01Introduction: 300 Blackout Powder Coated Bullet Tests
  2. 00:06Historical Feeding Issues with Powder Coated Bullets
  3. 00:46Testing Reloder 7 Powder
  4. 01:00160 Grain Supersonic Load Details
  5. 01:20202 Grain Subsonic Load Details
  6. 01:58Case Preparation: Flaring and Priming
  7. 03:40Range Setup: Initial Shooting Without Suppressor
  8. 04:10Shooting 160 Grain Supersonic Loads
  9. 04:49Shooting 202 Grain Subsonic Loads
  10. 05:18Chronographing Supersonic Loads
  11. 05:57Chronographing Subsonic Loads
  12. 06:28Attaching Suppressor and Shooting Steel
  13. 06:35Shooting Remaining Supersonic Loads
  14. 09:25Shooting Subsonic Loads at Steel
  15. 11:08Conclusion: Reloder 7 Performance
  16. 11:13Next Video: CFE Black Powder Test

Frequently Asked Questions

What were the historical problems with powder-coated bullets in 300 Blackout?

Historically, powder-coated lead bullets in 300 Blackout could lead to significant buildup of gunk and lead at the front of the chamber, causing feeding malfunctions and reliability issues.

What are the recommended loads for Reloder 7 in 300 Blackout?

For supersonic loads, 17.5 grains of Reloder 7 with a 160-grain bullet at 2.35" OAL was tested. For subsonic loads, 11.3 grains of Reloder 7 with a 202-grain bullet at 2.1" OAL was used.

What were the chronograph results for Reloder 7 in 300 Blackout?

The 160-grain supersonic loads averaged around 1570 fps. The 202-grain subsonic loads showed variability, with some rounds falling into the 1015-1025 fps range, while one was higher at 1120 fps.

Did Reloder 7 perform well with powder-coated bullets in 300 Blackout?

Yes, in this test, Reloder 7 performed without any feeding issues or significant fouling when used with powder-coated bullets in 300 Blackout, suggesting it's a viable powder choice.

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