Papier-Mâché To Polymer: Getting The K31 Back Into The Rapid-Fire Stages

by
posted on August 24, 2019
** When you buy products through the links on our site, we may earn a commission that supports NRA's mission to protect, preserve and defend the Second Amendment. **
k31teaser.jpg

Paradoxically, the most accurate, fastest-cycling and generally highest quality as-issued Vintage Military Rifle competition rifle, the Swiss K31, is not more prevalent at VMR matches—perhaps at least in part because the chargers have been an issue.

The Swiss-manufactured K31 six-round chargers (“stripper clips”) of a varnished papier-mâchéwith tinned iron edges. They were not intended to be reused, and after bending the tinned iron cartridge retaining clips a few times in reuse, they break off, rendering the charger useless. We need these chargers for reloading the K31 in VMR competition’s rapid-fire stages.

Once prevalent and inexpensive when the K31s and Swiss GP11 ammunition first hit American markets some years ago, original chargers are now so scarce that online auctioneers (or buyers) have escalated prices for these throwaways into the “Absurd” category at around $25 each. Solution: Northridge, Inc. has come to the rescue with reusable, durable polymer chargers. Cost is $25 a pair—and two is just what we need for a VMR match.

The origin of the K31’s charger is a pair of U.S. Army Lieutenant Colonels who, though creative, didn’t have much luck on the business side. According to The Book of Rifles (Smith & Smith, 1948) and an April 12, 1906 article in Shooting and Fishing magazine (precursor to American Rifleman), the Swiss papier-mâché charger is a knockoff of an earlier one invented by U.S. Army Lt. Col. Andrew H. Russel and Lt. Col. William R. Livermore in the late 1800s. It appears the Swiss did not compensate Russell and Livermore for their idea. The light colonels lost again when the U.S. government adopted the Krag-Jorgenson rifle after their Russell-Livermore Magazine Rifle failed to outperform the Krag in Army trials. They subsequently sued the government for $100,000 in 1901, claiming the side-loading Krag used several patented features of their rifle. They lost yet again when the court decided, on a technicality, that the colonels had sued based on an implied contract, rather than on a patent infringement, and so found no case against the government.


See more: Vintage Rifle Cartridges You May Not Know

Latest

Lapua Biathlon 2026 2
Lapua Biathlon 2026 2

Lapua Renews as Official Ammunition Supplier of U.S. Biathlon Ahead of New Olympic Cycle

Lapua has renewed its partnership with U.S. Biathlon as the organization’s official ammunition supplier for the upcoming Olympic cycle.

ATA Grand American Returns to Sparta With a Full Event Lineup

The Amateur Trapshooting Association’s 127th Grand American runs July 29 through August 8 in Sparta, Illinois, with a tribute to the late Lynn Gipson.

Team Winchester and Team White Flyer Stack the Podium at 2026 World English

Team Winchester and Team White Flyer shooters earned multiple podiums at the 2026 World English Sporting Clays Championship.

From Milestones to Movement: Inside USPSA’s 2026 Blueprint

Alan Turner outlines USPSA’s 2026 priorities: club recruitment rewards, mobile app upgrades, junior memberships and championship planning.

Derrick Mein Secures Silver at ISSF World Cup Shotgun in Kazakhstan

Team Federal’s Mein took silver at the ISSF World Cup in Almaty after Turkey’s Tolga Tuncer set a world record to take gold.

USPSA Limited 10: The Same Foundation, One New Option

USPSA Limited 10 now allows optics, but doesn’t require them. Same scoring, same equipment rules, same division. One change, one new pathway.

Interests



Get the best of Shooting Sports USA delivered to your inbox.