6.5 Creedmoor - 142gr Sierra Match King with H4350 & IMR4451

Published on June 16, 2018
Duration: 20:00

This guide details the process of developing accurate loads for the 6.5 Creedmoor cartridge using Sierra 142gr Match King bullets. Expert insights from Johnny's Reloading Bench cover component selection, precise reloading techniques with specific dies and presses, and systematic range testing. The analysis focuses on comparing IMR 4451 and Hodgdon H4350 powders to identify optimal charge weights for superior accuracy and velocity.

Quick Summary

Expert load development for 6.5 Creedmoor using 142gr Sierra Match King bullets shows Hodgdon H4350 yielding the best accuracy (0.481" group) over IMR 4451 (0.664" group). Key factors include precise COAL of 2.810", using Starline brass, and tools like RCBS presses and Hornady dies for consistent results.

Chapters

  1. 00:00Introduction and Equipment Overview
  2. 01:01Components and Powder Selection
  3. 02:14Brass Preparation and Load Data
  4. 05:01Reloading Process
  5. 07:01Range Testing: IMR 4451
  6. 11:12Range Testing: H4350
  7. 15:21Final Results and Analysis

Frequently Asked Questions

What are the best performing powders for 6.5 Creedmoor with 142gr Sierra Match King bullets?

Based on testing, Hodgdon H4350 powder yielded the tightest group (0.481 inches) while IMR 4451 produced a respectable 0.664-inch group. Both powders showed excellent potential for accuracy with this bullet weight.

What is the recommended COAL for 6.5 Creedmoor loads using 142gr Sierra Match King bullets?

The recommended Cartridge Overall Length (COAL) for 6.5 Creedmoor loads with 142gr Sierra Match King bullets in this test was 2.810 inches. Maintaining consistent COAL is crucial for reliable feeding and accuracy.

What tools are essential for precise 6.5 Creedmoor reloading?

Essential tools for precise 6.5 Creedmoor reloading include a reliable press like the RCBS Rock Chucker, accurate dies such as Hornady Custom Grade with micrometer adjustment, a bullet comparator for seating depth, and a chronograph like the MagnetoSpeed for velocity data.

How does Starline brass perform in 6.5 Creedmoor reloading?

Starline small primer brass demonstrated good durability in this 6.5 Creedmoor test, being successfully reloaded after eight firings and recent annealing. This indicates it's a reliable choice for multiple reloading cycles.

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