K31 with Diopters

Published on September 5, 2017
Duration: 28:56

This review explores the accuracy potential of the Swiss K31 rifle, particularly when equipped with diopter sights. Despite challenging weather conditions, the rifle demonstrated impressive accuracy, achieving a 3-inch group at 300 yards. The video also touches on the importance of proper rifle bedding, the cost of high-quality diopter sights, and the unique safety mechanism of the K31.

Quick Summary

The Swiss K31 rifle, equipped with diopter sights and using GP11 ammunition, demonstrated remarkable accuracy by achieving a 3-inch group at 300 yards (approx. 1 MOA) even in adverse weather conditions. Proper bedding and barrel band tension are key for accurizing this vintage rifle.

Chapters

  1. 00:00Introduction: K31 & Youth Shooting Sports Ambassador
  2. 00:46Rifle & Diopter Sight Overview (1945 K31)
  3. 01:13GP11 Ammunition Specs (174gr)
  4. 01:56300-Yard Accuracy Test in Thunderstorm
  5. 05:52Steel Target Engagement (Gopher Silhouette)
  6. 09:18Low Light & Rain Challenges with Diopter Sights
  7. 11:35Diopter Sight Costs & K31 Safety
  8. 13:15Accurizing the K31: Bedding & Barrel Band

Frequently Asked Questions

What kind of accuracy can be expected from a Swiss K31 with diopter sights?

The Swiss K31, when equipped with diopter sights and using GP11 ammunition, can achieve impressive accuracy. During testing in challenging weather, it produced a 3-inch group at 300 yards, which is roughly 1 MOA, demonstrating its potential for precision shooting.

What are the key features of the GP11 ammunition used in the K31 review?

The GP11 service ammunition featured a 174-grain cupro-nickel jacketed bullet. This specific bullet construction is designed to minimize barrel erosion and fouling, contributing to the longevity and consistent performance of the rifle's bore.

How do diopter sights affect shooting in low light or adverse weather?

Diopter sights, with their small apertures, can become challenging to use in low light conditions. This difficulty in acquiring a clear sight picture can lead to shooter-induced errors, such as vertical stringing in shot groups, especially when combined with rain.

What gunsmithing factors are important for accurizing a Swiss K31?

Accurizing a K31 involves paying close attention to bedding and barrel harmonics. Ensuring consistent torque on action screws and proper tension on the front barrel band is critical, as these elements directly influence the barrel's free-float and overall accuracy potential.

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