6.5 Creedmoor - H4350 vs IMR4350 - 143 ELD-X

Published on December 17, 2017
Duration: 38:47

This video provides an expert-level comparison of Hodgdon H4350 and IMR 4350 powders for the 6.5 Creedmoor cartridge, utilizing 143gr Hornady ELD-X bullets. The instructor, Johnny, details load development, equipment, and range testing, offering valuable insights into powder burn rates, charge weights, and resulting accuracy. The analysis highlights the subtle differences between the two powders and their impact on performance.

Quick Summary

Expert reloading data for 6.5 Creedmoor compares Hodgdon H4350 and IMR 4350 powders using 143gr Hornady ELD-X bullets. Testing on a Thompson Center Compass showed H4350 yielded higher velocities and consistent accuracy at higher charges, while IMR 4350 achieved a 0.544" group at lower charges but became compressed and less accurate at higher loads.

Chapters

  1. 00:00Introduction and Project Selection
  2. 02:28Powder Comparison: H4350 vs IMR 4350
  3. 04:49Load Data and Components
  4. 07:58Reloading Equipment Discussion
  5. 12:26Range Testing and Results
  6. 14:31Final Analysis

Frequently Asked Questions

What are the key differences between Hodgdon H4350 and IMR 4350 for 6.5 Creedmoor reloading?

While similar, H4350 and IMR 4350 are not direct substitutes. IMR 4350 generally allows for slightly higher max charge weights and burns a bit slower than H4350. In testing, H4350 yielded slightly higher velocities, while IMR 4350 showed potential for exceptional accuracy at lower charges but became compressed and less accurate at higher loads.

What rifle and components were used in the 6.5 Creedmoor powder comparison?

The test utilized a Thompson Center Compass rifle with a 22-inch barrel, equipped with a Vortex Crossfire II 4-12x44 scope. For components, 143gr Hornady ELD-X bullets, Starline small primer brass, and CCI 450 small rifle magnum primers were used.

How did H4350 and IMR 4350 perform in terms of accuracy for the 6.5 Creedmoor?

Both powders produced hunting-acceptable accuracy. H4350 achieved its best group at 0.674 inches at higher charges. IMR 4350 delivered a standout 0.544-inch group at its lowest charge, but accuracy opened up significantly as charges increased and became compressed.

What is the importance of using the correct seating stem when reloading specific bullets like Hornady ELD-X?

Using the correct Hornady seating stem, particularly one designed for bullets with a pronounced ogive like the ELD-X, is crucial. It ensures consistent seating depth and prevents damage to the bullet's aerodynamic tip, which is vital for accuracy and performance.

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