300 BLK - 190gr Hornady SUB-X with N120 and 1680

Published on May 9, 2022
Duration: 29:47

This guide details the process of handloading .300 Blackout ammunition using Hornady 190gr SUB-X bullets with Accurate 1680 and Vihtavuori N120 powders. It covers case preparation, OAL determination, powder charging, bullet seating, and essential testing phases including velocity measurement, stability assessment, ballistic gel expansion, and final accuracy testing. The instruction comes from an experienced reloader with a deep understanding of internal and terminal ballistics.

Quick Summary

Reloading .300 Blackout with Hornady 190gr SUB-X bullets using Vihtavuori N120 or Accurate 1680 powders yields excellent results. N120 achieved a 0.32" group at 50 yards, while Accurate 1680 produced a 0.70" group. The SUB-X expands reliably at subsonic velocities, aided by its Flex Tip technology.

Chapters

  1. 00:00Introduction and Load Selection
  2. 02:13Case Preparation and OAL Determination
  3. 05:49Powder Charging and Bullet Seating
  4. 11:03Initial Range Trip: Velocity and Stability
  5. 15:47Ballistic Gel Testing
  6. 18:09Gel Analysis and Comparisons
  7. 21:34Accuracy Testing at 50 Yards

Frequently Asked Questions

What powders are recommended for reloading 190gr Hornady SUB-X bullets in .300 Blackout?

Vihtavuori N120 and Accurate 1680 powders are recommended. The video shows N120 producing an exceptional 0.32" group at 50 yards, while Accurate 1680 yielded a 0.70" group with the same bullet.

How does the Hornady 190gr SUB-X perform in ballistic gel for .300 Blackout?

The Hornady 190gr SUB-X expands reliably at subsonic velocities, even down to 974 fps, due to its Flex Tip technology, making it effective for terminal ballistics.

What accuracy can be expected when reloading .300 Blackout with Hornady 190gr SUB-X?

When using Vihtavuori N120 powder, an exceptional accuracy of 0.32 inches was achieved at 50 yards. Using Accurate 1680 powder resulted in a 0.70-inch group at the same distance.

What are the key steps in reloading .300 Blackout with Hornady SUB-X bullets?

Key steps include resizing brass, determining the correct OAL (e.g., 2.070" for SUB-X), weighing powder charges precisely, seating bullets, and conducting velocity, stability, and accuracy tests.

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