6.5 Creedmoor - Hotter loads with H4350 and 143gr ELD-X

Published on December 22, 2017
Duration: 24:40

This video explores pushing the limits of 6.5 Creedmoor loads with Hodgdon H4350 and Hornady 143gr ELD-X bullets, exceeding published data. Testing revealed that charge weights up to 43.4 grains are achievable in a Thompson Center Compass with Starline brass and CCI 450 primers, showing consistent performance despite increased pressure signs like ejector marks. The host emphasizes understanding pressure indicators beyond primer appearance, noting that bolt fit can cause cratering.

Quick Summary

Testing hotter 6.5 Creedmoor loads with Hodgdon H4350 and 143gr ELD-X bullets revealed that charge weights up to 43.4 grains are achievable in a Thompson Center Compass, yielding 2783 fps. Pressure signs like ejector marks appeared, but no pierced primers or heavy bolt lift were noted.

Chapters

  1. 00:00Introduction: Hotter 6.5 Creedmoor Loads
  2. 02:11Analyzing Published H4350 Load Data
  3. 03:47Test Load Specifications: H4350 & ELD-X
  4. 04:34Primer Cratering & Bolt Issues Explained
  5. 06:55Case Prep & Powder Charging
  6. 10:26Range Testing: Initial Loads (41.6gr)
  7. 13:06Mid-Range Load Results (42.2gr)
  8. 16:11High-Pressure Load Results (43.1gr)
  9. 18:03Maximum Load & Final Analysis (43.4gr)

Frequently Asked Questions

What are the key components used in testing hotter 6.5 Creedmoor loads?

The test utilized Hornady 143gr ELD-X bullets, Hodgdon H4350 powder, Starline small primer brass, and CCI 450 small rifle magnum primers, with an overall length of 2.800 inches.

What pressure signs were observed when exceeding published H4350 load data for 6.5 Creedmoor?

As charge weights increased, ejector marks became more apparent on the brass. While primer cratering was noted, it was attributed to bolt fit. No pierced primers or heavy bolt lift were observed up to 43.4 grains.

Can you safely exceed published load data for 6.5 Creedmoor with H4350?

Exceeding published data carries inherent risks. This test showed that up to 43.4 grains of H4350 with 143gr ELD-X bullets in a specific rifle did not result in catastrophic pressure signs, but extreme caution and incremental testing are vital.

What is the maximum tested charge of H4350 for 6.5 Creedmoor with 143gr ELD-X?

The maximum charge tested was 43.4 grains of Hodgdon H4350 powder with a 143gr Hornady ELD-X bullet. This load achieved a velocity of 2783 fps and produced a 1.290-inch group.

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