A Cleaner All-Purpose Pistol Powder: Winchester AutoComp

Published on July 12, 2025
Duration: 10:52

This video provides an expert-level review of Winchester AutoComp pistol powder, focusing on its performance in 9mm Luger and .45 ACP. The instructor highlights its clean-burning properties, excellent metering characteristics due to its spherical nature, and its suitability for competition and recreational shooting. Specific load data and chronograph results are presented, demonstrating impressive velocities and tight standard deviations, particularly in 9mm.

Quick Summary

Winchester AutoComp is a spherical ball powder favored for its clean burning and excellent metering, making it ideal for reloading common pistol cartridges like 9mm and .45 ACP. It offers consistent performance, particularly for competition firearms, and has demonstrated impressive velocities in testing.

Chapters

  1. 00:03Introduction to Reloading Powders
  2. 00:20Introducing Winchester AutoComp
  3. 00:33AutoComp's Intended Applications
  4. 00:48Ball Powder Characteristics
  5. 00:57Clean Burning Advantage
  6. 01:13Made in the USA
  7. 01:25Testing in 9mm and .45 ACP
  8. 01:38Tight Operating Window
  9. 01:539mm Load Data Example
  10. 02:20.45 ACP Load Data Example
  11. 02:41Burn Rate Chart Comparison
  12. 03:30Reloading Press Setup
  13. 04:39Powder Charging Process
  14. 05:04Chronograph Testing
  15. 05:23.45 ACP Velocity Results
  16. 06:019mm Velocity Results
  17. 06:279mm Standard Deviation
  18. 07:00Shooting Impressions
  19. 08:14Post-Firing Cleanliness
  20. 08:25Conclusion and Performance Summary
  21. 09:03Suitability for Competition Shooters
  22. 09:34Future Testing Ideas
  23. 09:48Viewer Engagement

Frequently Asked Questions

What are the key benefits of using Winchester AutoComp powder for reloading?

Winchester AutoComp is a spherical ball powder known for its clean burning properties and excellent metering, which is crucial for consistent and accurate handloads. It's also manufactured in the USA, potentially easing supply chain concerns for reloaders.

What cartridges is Winchester AutoComp best suited for?

AutoComp is primarily recommended for common pistol cartridges such as 9mm Luger, .45 ACP, .40 S&W, and .38 Super. It's particularly favored for competition and race guns where consistent performance is essential.

Does Winchester AutoComp meter well in reloading equipment?

Yes, as a spherical ball powder, AutoComp meters very consistently through both manual powder measures and progressive reloading presses. This characteristic contributes to precise and repeatable powder charges.

What kind of velocities can be expected with Winchester AutoComp?

Testing showed impressive velocities, with 9mm loads reaching an average of 1219 ft/s with a 124-grain bullet and .45 ACP loads achieving 918 ft/s with a 230-grain bullet, often exceeding initial expectations.

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