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

Masters Parabiathlon2026 1
Masters Parabiathlon2026 1

Milan Cortina 2026: Team USA’s Masters Defends Paralympic Biathlon Title With Perfect Shooting

Oksana Masters defended her Paralympic biathlon sprint title with flawless shooting at Milan Cortina 2026, with teammate Kendall Gretsch taking silver.

MidwayUSA Foundation Sends $7.5 Million to 995 Youth Shooting Teams Across 46 States

MidwayUSA Foundation concludes its February grant cycle with more than $7.5 million paid to youth shooting teams nationwide, funded by endowments that allow teams to draw 5% annually in perpetuity.

2026 NSCA Championship Tour Opens in March With Eight Stops and Expanded Winchester Ladies Cup

The NSCA Championship Tour, Powered by Winchester returns for 2026 with eight stops, $40,000 in added Ladies Cup payouts and 120 cases of ammunition for women competitors.

Westin Anderson Wins Junior HOA Title at 50th Spring Grand American

Westin Anderson wins Junior HOA and Singles champion titles while Ziggy Tkaczenko sweeps the wheelchair division at 50th Spring Grand American in Tucson.

Revolver Trailblazer: Beth Willoughby’s Journey from Bullseye to Steel Challenge Grand Master

Beth Willoughby, the first woman to make Grand Master in Steel Challenge OSR, shares her path from bullseye shooting to breaking women’s revolver world records.

ATA Great Lakes Satellite Grand Returns to Michigan in May

The Amateur Trapshooting Association’s 38th Annual Great Lakes Satellite Grand American runs six days at the MTA home grounds in Mason, Michigan, with 16 events across singles, handicap and doubles.



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