6.5 Creedmoor - H4350 vs IMR4350 - 143 ELD-X

Published on December 17, 2017
Duration: 38:47

This video compares Hodgdon H4350 and IMR 4350 powders for the 6.5 Creedmoor cartridge using 143gr Hornady ELD-X bullets. While similar, IMR 4350 is slightly slower burning and allows higher max charges. Testing revealed H4350 achieved best accuracy at higher loads, while IMR 4350 showed a standout group at its lowest charge but degraded with increased compression. Both powders provided hunting-acceptable accuracy.

Quick Summary

IMR 4350 is slightly slower burning than H4350 and allows higher max charges, but can cause accuracy degradation due to compression at higher loads. H4350 achieved best accuracy at top loads, while IMR 4350 excelled at its lowest charge in 6.5 Creedmoor tests with 143gr ELD-X bullets.

Chapters

  1. 00:00Introduction: 6.5 Creedmoor Project
  2. 02:28Powder Comparison: H4350 vs IMR 4350
  3. 04:49Load Data and Components Used
  4. 07:58Reloading Equipment: Scales & Seating Stems
  5. 12:26Range Testing: Accuracy Results
  6. 14:31Final Analysis: Powder Performance

Frequently Asked Questions

What are the key differences between H4350 and IMR 4350 powders for reloading?

While similar, IMR 4350 is generally slightly slower burning than Hodgdon H4350. IMR 4350 often allows for higher maximum charge weights and can be more prone to compression issues at higher loads, potentially affecting accuracy.

Which powder, H4350 or IMR 4350, provided better accuracy for 6.5 Creedmoor with 143gr ELD-X bullets?

In this test, H4350 showed its best accuracy at higher charge weights. IMR 4350 achieved an excellent small group at its lowest charge, but accuracy decreased as charges increased and compression became a factor.

What were the velocity differences between H4350 and IMR 4350 in the 6.5 Creedmoor test?

For similar charge weights, Hodgdon H4350 was approximately 50 feet per second faster than IMR 4350 when reloading 6.5 Creedmoor cartridges with 143gr ELD-X bullets.

Is IMR 4350 a direct substitute for H4350 in reloading 6.5 Creedmoor?

No, they are not direct replacements. While similar, IMR 4350 burns slightly slower and typically allows higher max charges. It's crucial to consult specific load data for each powder to ensure safe and accurate reloading.

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