Finnish M39 600 Yard D166 Ammo Test

Published on February 20, 2017
Duration: 15:46

This video details a 600-yard accuracy test of a Finnish M39 Mosin-Nagant rifle using custom handloads featuring 200-grain Lapua D166 bullets and Vihtavuori N140 powder. The expert instruction highlights the challenges of long-range shooting with iron sights and significant crosswinds, demonstrating a practical approach to assessing ammunition performance. The assessment concludes the D166 load is highly effective for the M39 platform at extended distances.

Quick Summary

The Finnish M39 rifle, when paired with custom handloads using 200-grain Lapua D166 bullets and Vihtavuori N140 powder, demonstrates significant long-range accuracy potential. Even with a 15-20 mph crosswind, the rifle achieved roughly a 50% hit rate on a 600-yard steel gong, highlighting the effectiveness of this ammunition choice for the platform.

Chapters

  1. 00:00Introduction to Finnish M39 & D166 Handloads
  2. 00:52600-Yard Shooting Test with Crosswind
  3. 01:25Handloading Details & D166 Bullet
  4. 03:47Target Engagement & Iron Sight Accuracy
  5. 11:17Final Assessment & Future Tests

Frequently Asked Questions

What ammunition is recommended for the Finnish M39 rifle for long-range accuracy?

For long-range accuracy with the Finnish M39 rifle, a handload featuring a 200-grain Lapua D166 FMJBT bullet and Vihtavuori N140 powder is recommended as 'proper food' for optimal performance at distances like 600 yards.

How does wind affect shooting a Finnish M39 at 600 yards?

A 15-20 mph crosswind significantly complicates shooting a Finnish M39 at 600 yards, requiring precise adjustments for windage and elevation to achieve consistent hits on target. The test demonstrated that even with heavy wind, the rifle and load combination can be effective.

What are the challenges of shooting a Finnish M39 at 600 yards with iron sights?

Shooting a Finnish M39 at 600 yards with iron sights presents challenges due to the distance and the size of the sights, demanding significant shooter skill and precise aiming. Compensating for environmental factors like wind is crucial for accuracy.

What was the accuracy achieved with the Finnish M39 and D166 ammo at 600 yards?

During the test, the Finnish M39 rifle using Lapua D166 200gr handloads achieved approximately a 50% connection rate on a 600-yard steel gong, despite facing a 15-20 mph crosswind, indicating effective performance.

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