R-20 Service Rifle

R-20 Service Rifle

Standard-issue bolt-action service rifle
Service Data
Type	Bolt-action service rifle
Origin	Gondara
Manufacturer	Gondaran State Arsenals
Used By	Army of Gondara
Design Date	1920
Service Entry	1922
Predecessor	None
Successor	BR-35 Battle Rifle
Technical Data
Caliber	6.25×48mm Gondaran
Action	Short-throw bolt-action
Feed System	10-round detachable box magazine
Muzzle Velocity	2,800 ft/s (853 m/s)
Barrel Length	20 in (508 mm)
Overall Length	40.5 in (1,028 mm)
Weight	8.5–9.5 lbs
Crew	Individual
Sights	Iron sights; selected rifles fitted with 3× optics
Effective Range	400 m (437 yd)
Maximum Range	3,000 m (3,280 yd)
Production Data
Unit Cost	$45
Variants	R-20 Designated Marksman Rifle

Armed Forces of Gondara › Gondaran Military Equipment › R-20 Service Rifle

Overview

The R-20 Service Rifle is the primary bolt-action infantry weapon of the Army of Gondara. Established in 1922, it represents the pinnacle of "Old World" Gondaran craftsmanship—rugged, incredibly accurate, and featuring a high-capacity magazine system that was decades ahead of its peers.

Design and Development

Designed in 1920 to modernize the infantry, the R-20 moved Gondara away from heavy, cumbersome long-rifles. The engineers at Gondaran State Arsenals focused on a "Maneuver-First" philosophy, resulting in a shortened 20-inch barrel and a revolutionary 60° short-throw bolt. This allowed for a much faster cycling of the action compared to the 90° bolts used by other nations.

The "Bolt Binding" Crisis (1920-1921)

The R-20's most ambitious feature—the 60° short-throw bolt—nearly caused the project's cancellation.

The Flaw: Early prototypes utilized a standard linear bolt track. However, the reduced leverage of a 60° throw meant that if a soldier cycled the bolt too aggressively, it would "bind" or lock up in the receiver. In 1920, three test-range accidents occurred where soldiers could not clear a jammed round under simulated combat conditions.
The Engineering Fix: Designers at Gondaran State Arsenals introduced the Dual-Roller Cam System. By adding two small, precision-milled rollers to the bolt body, they eliminated the friction that caused binding. This resulted in the "Buttery Action" for which Gondaran rifles are now famous, allowing a trained soldier to fire up to 15 aimed rounds per minute.

The Magazine Reliability Issue

In 1921, the decision to use a 10-round detachable magazine was viewed as a dangerous luxury.

The Flaw: Early stamped-metal magazines were prone to denting, which caused the follower to stick and led to "Failure to Feed" (FTF) errors. Initial tests showed a staggering 15% malfunction rate when magazines were dropped on hard soil.
The Metallurgy Solution: Rather than reverting to a 5-round internal box like their neighbors, Gondara doubled down on metallurgy. They developed a Heat-Treated Spring Steel alloy for the magazine body. This made the magazines rigid enough to be stepped on by a combat boot without losing their shape, securing the R-20’s 10-round advantage.

Transition to the "Short" Barrel

Traditionalists in the Gondaran War Office argued that a 20-inch (508 mm) barrel would lose too much accuracy compared to the older 30-inch standards.

The Trial: In the 1921 "Long vs. Short" trials, engineers proved that the high-pressure 6.25×48mm Gondaran round actually reached peak stabilization within 18 inches. The 20-inch barrel was a "Sweet Spot" that offered the accuracy of a sniper rifle with the handling of a carbine.
Final Polish: To further aid accuracy, the R-20 was given a Heavy-Profile Bull Barrel, which resisted "heat-stringing" (warping) during rapid fire—a feature usually reserved for expensive hunting rifles of the era.

1922 Service Entry

After two years of grueling "Desert and Highland" trials, the rifle was officially adopted as the R-20. Its success was so immediate that by 1925, Gondara had completely phased out all previous bolt-action platforms, creating the first truly standardized infantry force in the region.

Capabilities

Ballistic Performance

Chambered in the standard 6.25×48mm Gondaran, the R-20 benefits from a high muzzle velocity of 2,800 ft/s (853 m/s). This provides a very flat trajectory, making the rifle exceptionally easy to aim at ranges up to 400 meters without significant hold-over.

Logistics and Feeding

The R-20 utilized a 10-round detachable box magazine, a significant advantage over the 5-round internal magazines common in 1920.

Reloading: The rifle can be reloaded by swapping the magazine or by using two 5-round stripper clips through the top of the open bolt.
Durability: The receiver is milled from a single block of high-grade Gondaran steel, making the action virtually indestructible under field conditions.

Tactical Role

Though theoretically superseded by the BR-35 Battle Rifle, the R-20 remains in widespread service. It is the primary weapon for support echelons, colonial guards, and Designated Marksman roles where the absolute reliability and accuracy of a bolt-action are preferred over the volume of fire provided by semi-automatic platforms.