EDITOR: Our story on the Strasser RS14 straight-pull rifle created quite a stir. So, we thought we’d serve up another straight-pull feature — this time the German-crafted Merkel RX Helix. We shot the Helix a few years back during Media Day at the Range. One notable difference between the German Merkel and the Austrian Strasser is the bolt travel. During cycling, the Merkel bolt stays completely inside the action (see video below at 00:30). By contrast the Strasser bolt moves pretty far back, outside the action. For some folks that makes the Helix better for fast follow-up shots. All we can say is that Merkles and Strassers BOTH cycle way faster than conventional bolt-action rifles.

Merkel RX Helix Range Report

One of the most innovative rifles we have ever shot was the Merkel RX Helix, a very impressive piece of rifle engineering. Merkel claims the RX Helix is the fastest-cycling centerfire bolt action in the world. We can’t confirm that claim, but the Helix certainly cycles faster than any other centerfire bolt-gun this Editor has ever tried. (Yes, a Fortner biathlon action can be worked more rapidly, but that’s a rimfire). Both Jason and I really liked Merkel’s RX Helix. It balances well, the action is smooth, the wood is gorgeous, and the overall design thinking that went into this German-engineered take-down rifle is very impressive. The Helix’s universal-sized action lets you shoot anything from a .222 Rem to a .300 Win Mag with the same gun. And — get this — you can really swap barrels (and change bolt heads) in a couple of minutes with no tools, employing a dead-simple bolt-release lever concealed under the push-button-released removable forearm. (Watch VIDEO BELOW to see Barrel Swap procedure).

Rotary 7-Lug Bolt
While the RX Helix is a straight-pull rifle, it retains the strength and safety of a rotary bolt head with seven locking lugs that seat in a barrel extension. Unlike a Blaser, the RX Helix has a fully-enclosed action housing. That’s an important safety feature. Moreover, since the RX Helix employs a closed action, the bolt body doesn’t travel outside that action. This means the shooter can maintain his cheekweld with an eye on the target as he cycles the bolt.

The RX Helix’s linear (back and forth) bolt-handle motion is transmitted to the bolt head through a 1:2 ratio “transmission” gearing system. This allows smooth and fast cycling without the rotational or tipping movement found on other straight-pull, bolt-action rifles, such as the Blaser.

The Merkel linear-movement action cycles exceptionally fast, which allows for faster follow-up shots — a good thing if you’re hunting dangerous game. The RX Helix features a manual cocking lever on the tang and a direct trigger system. And here’s good news for southpaws — though Merkel does not make a dedicated left-hand version, lefties can very easily use their right hand to work the bolt while maintaining cheekweld. That may sound awkward, but with practice, it’s actually pretty efficient.

Fast, Easy Disassembly and Barrel Exchanges
The video below shows how the Helix can be disassembled (for cleaning or transport) in a matter of seconds WITHOUT TOOLS. The forearm slips off with the push of a button. A short lever on the left side of the action holds the barrel. Simply rotate the lever and the barrel (with bolt head) slips off. That’s it — in 30 seconds the rifle is apart, and you don’t even need an allen wrench as with a Blaser.

The RX Helix has a universal action length that covers calibers from .222 Rem to .300 Win Mag. Changing calibers (or chamberings) takes less than a minute with the appropriate barrel, bolt-head and magazine. Weaver rails are integrated into the action, and iron sights with three-dot rear and one-dot front fiber-optic inserts are standard.

The RX Helix is available with a standard black finish as well as four levels of design—Arabesque, Wild Boar, Spirit, and Deluxe. An all-carbon-fiber version is also available either with or without a carbon-wrapped barrel. The RX Helix comes in a wide range of popular calibers including .222 Rem, .223 Rem, .243 Win, 6.5×55 SE, .270 Win, 7×64, .308 Win, .30-06 Sprg., 8×57 IS, 9.3×62, 7mm Rem Mag and .300 Win Mag. Barrel lengths vary according to caliber, and barrels, bolt-heads and magazines are available for caliber changes. EuroOptic.com sells the Merkel RX Helix with Grade 2 wood for $3,785.00.

For those situations where you can only bring a minimum of cleaning gear, Otis Technologies offers the NEW Ripcord breech-to-muzzle cleaning cord. The Ripcord is composed of heat-resistant Nomex fibers braided over a molded rubberized core/cable combo, with a helix-style cord profile for better cleaning.

Otis Rip Cord Features

• Breech-to-Muzzle function (pulls gunk out, not back into action).
• 10″-long section of aggressive cleaning surface.
• Helix shape engages rifling through the barrel.
• Rubber core pushes outward for better swab contact.
• Nomex® fibers act as brush to loosen and patch to capture fouling.
• Equipped with 8-32 threaded ends to fit all Otis cleaning components.

How the Ripcord Does Its Job
Otis explains how the ripcord works: “The Nomex material acts as both a brush to loosen and a patch to capture fouling particles. The molded rubberized core keeps the Nomex cleaning surface pressed against the bore and the helix shape helps engage the rifling throughout the length of the barrel. The Ripcord is simple and easy to use — just insert the longer, narrower end in the chamber and then pull it through from Breech-to-Muzzle. Because of the rigidity of the Ripcord™, there is no need to gravity feed it through the barrel.” The Ripcord retails for $14.99 and is currently available in .22/.223 caliber, .308 caliber/7.62mm, 9mm, and .45 caliber, with other calibers coming soon.