Fiocchi 55gr M193 Ammo Lot Test - From Great to Garbage?

Published on April 23, 2026
Duration: 2:51

This video details a lot-to-lot consistency test of Fiocchi 55gr M193 ammunition. The instructor found significant variations in accuracy and velocity between different lots, impacting performance. Testing was conducted at 100 yards using two different AR-15 barrels, a 20-inch Bear Creek Arsenal HBAR and a 14.5-inch Hodge barrel, with data collected via a Garmin chronograph and Mantis X10.

Quick Summary

Fiocchi 55gr M193 ammunition lot testing revealed significant inconsistencies in accuracy and velocity. AZ scores ranged from 91 to 268 yards across different lots and barrels, with velocity spreads approaching 220 ft/s, indicating a wide performance gap.

Chapters

  1. 00:00Introduction: Lot Testing M193
  2. 00:15Testing Methodology: Barrels and Lots
  3. 00:26Accuracy Comparison: BCA Barrel Groups
  4. 00:39Friend's Issues with Fiocchi Ammo
  5. 00:46Shooting Conditions: 100 Yards, 30 Shots
  6. 01:01Equipment Used: Scope, Trigger, Chronograph
  7. 01:12Cold Bore Shots and Barrel Chilling
  8. 01:19BCA Barrel Results: AZ Scores
  9. 01:37Hodge Barrel Results: AZ Scores
  10. 01:51Velocity Comparison: 20-inch Barrel
  11. 02:04Velocity Spread and Temperature Impact
  12. 02:25Velocity Comparison: 14.5-inch Barrel
  13. 02:40Data Availability and Channel Support

Frequently Asked Questions

What was the main finding of the Fiocchi 55gr M193 ammunition lot test?

The primary finding was significant lot-to-lot inconsistency in Fiocchi 55gr M193 ammunition. This resulted in wide variations in accuracy, measured by AZ scores, and substantial differences in muzzle velocity between tested lots.

What equipment was used to test the Fiocchi M193 ammunition?

The test utilized a 20-inch Bear Creek Arsenal HBAR and a 14.5-inch Hodge barrel. A D&T 7-35x56 scope, AR Gold trigger, Garmin chronograph, Mantis X10, and Shooter's Global SG Pulse were also employed for data collection.

How much did the accuracy vary between different lots of Fiocchi 55gr M193?

Accuracy varied considerably. On the Bear Creek Arsenal barrel, AZ scores ranged from 104 yards for the worst group to 268 yards for the best. The Hodge barrel showed similar spread, with AZ scores from 91 yards to 245 yards.

What were the observed velocity differences for Fiocchi 55gr M193?

Velocity differences were notable. From the 20-inch barrel, the spread was nearly 200 ft/s, and from the 14.5-inch barrel, it was almost 220 ft/s, indicating significant performance variation between ammunition lots.

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