Easy, Budget 300 BLK: Subsonic + Supersonic with Berry's

Published on June 27, 2026
Duration: 13:13

This guide details an economical approach to reloading 300 Blackout ammunition for both subsonic and supersonic applications using a single powder, Hodgdon H110, and two different Berry's Manufacturing bullets (220-grain for subsonic, 150-grain spire point for supersonic). It emphasizes cost savings compared to factory ammunition and provides specific load data and considerations for velocity, cartridge overall length, and barrel twist rates. The instruction is presented by Gavin G. from Ultimate Reloader, highlighting practical reloading techniques for AR-15 platforms.

Quick Summary

Reloading 300 Blackout ammunition offers significant cost savings, with costs potentially dropping to $0.37 per round using Berry's 220-grain bullets and Hodgdon H110 powder. This approach allows for both subsonic and supersonic loads using a single powder, providing versatility and economic benefits for frequent shooters.

Chapters

  1. 00:00Introduction: One Powder, Two Bullets for 300 BLK
  2. 00:11Gavin G. from Ultimate Reloader
  3. 00:39Cost Savings: Subsonic vs. Factory Ammo
  4. 00:49Ultimate Reloader Pro Cost Calculator
  5. 00:79Factory vs. Reloaded 300 BLK Costs
  6. 01:04Reloading 1000 Rounds: Savings Analysis
  7. 01:20Why Reloading 300 BLK is Essential
  8. 01:37Berry's 220 Grain Bullets: Cost-Effective
  9. 01:47Versatility of Berry's Bullets
  10. 01:70Barrel Twist Rate Requirements
  11. 01:94Subsonic Load Development: 220 Grain
  12. 02:10Recommended Subsonic Load Data
  13. 02:23Velocity and Transonic Range
  14. 02:45Avoiding Supersonic Cracks
  15. 02:72Firearm Setup: AR-15 with Suppressor
  16. 02:98Introducing the 150 Grain Spire Point Bullet
  17. 03:14Flat Point vs. Spire Point Bullets
  18. 03:34Supersonic Load Performance
  19. 03:48Velocity Limits by Twist Rate
  20. 03:59Cartridge Overall Length (COL)
  21. 03:85Versatility of 300 Blackout
  22. 04:19Using H110 for Both Loads
  23. 04:28Progressive Press Setup
  24. 04:59Supersonic Load Development: 150 Grain
  25. 04:81Performance of 150 Grain Load
  26. 05:00Dedicated Seating Dies
  27. 05:15Micrometer on Powder Measure
  28. 05:30Kinetic Energy Comparison
  29. 05:44Energy of 150 Grain Load
  30. 05:56Energy Formula: 1/2 mv^2
  31. 05:69Energy of 220 Grain Load
  32. 05:82Energy Advantage of Supersonic Loads
  33. 05:91Practical Applications: Hunting vs. Subsonic
  34. 06:05Subsonic Shooting & Hearing Protection
  35. 06:22Convenience of Subsonic Shooting
  36. 06:32Visual Comparison: Velocity & Energy
  37. 06:38Conclusion: One Powder, Two Bullets
  38. 06:57Economical and Flexible 300 BLK Shooting
  39. 06:66The Value of Reloading
  40. 06:72Tailoring Loads to Firearms
  41. 06:77Tuning Loads for Functioning and Velocity
  42. 06:93Future Subsonic Load Stories
  43. 07:07Hodgdon Dedicated Subsonic Data
  44. 07:16Powders for Versatility and Efficiency
  45. 07:25Subscribe for More Content
  46. 07:30Comment Section & Feedback
  47. 07:36Video Conclusion
  48. 07:42Ultimate Reloader Newsletter
  49. 07:61Ultimate Reloader Pro Membership
  50. 07:69Pro Membership Software Tools
  51. 07:83Enhance Your Reloading Experience

Frequently Asked Questions

What is the most cost-effective way to shoot 300 Blackout?

Reloading 300 Blackout ammunition is significantly more cost-effective than buying factory loads. For example, using Berry's 220-grain bullets with Hodgdon H110 powder can cost as little as $0.37 per round, compared to factory ammunition which can exceed $1.30 per round.

Can one powder be used for both subsonic and supersonic 300 Blackout loads?

Yes, Hodgdon H110 powder is demonstrated to be effective for both subsonic and supersonic 300 Blackout loads. It allows for consistent performance across different bullet weights and velocities when appropriate load data is followed.

What are the recommended bullet weights for subsonic and supersonic 300 Blackout reloads?

For subsonic 300 Blackout reloads, a heavier bullet like the 220-grain is recommended for slower velocities. For supersonic loads, a lighter bullet such as the 150-grain spire point offers better performance and higher velocities.

What is the ideal velocity for subsonic 300 Blackout loads?

For subsonic 300 Blackout loads, an average velocity around 1050 feet per second (fps) is considered optimal. This velocity range helps ensure the projectile remains subsonic, avoiding audible 'cracks' and maintaining quieter operation.

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