A single action revolver fires only after you manually pull back the hammer for each shot, while a double action revolver can cock and release that same hammer in one continuous trigger pull. This distinction shapes everything from trigger feel to shooting speed to the reason cowboy action competitors still favor the older design more than 150 years after Colt introduced it. Understanding the mechanical difference helps you choose the right revolver for target shooting, self-defense, or historical reenactment, and it explains why certain models dominate specific shooting sports.
According to the National Shooting Sports Foundation’s annual firearms retail survey, revolvers account for a modest but stable share of handgun sales in the United States each year, and single action models remain a consistent segment within that category thanks to sustained interest in cowboy action shooting and historical firearms collecting.
Key Takeaways
- A single action revolver requires the hammer to be manually cocked before every shot, which typically results in a lighter trigger pull of roughly 2 to 4 pounds.
- A double action revolver lets the trigger both cock and release the hammer, usually requiring 8 to 12 pounds of pull weight in that mode.
- Most single action revolvers, including the Colt Single Action Army and its many replicas, hold six rounds and are loaded and unloaded one chamber at a time.
- The Single Action Shooting Society (SASS) requires competitors to use period-correct single action revolvers with a minimum 4.75 inch barrel and specific caliber and velocity limits.
- Entry-level single action revolvers start around $180 to $250, while historically accurate Colt-pattern models can run from $700 to well over $2,000.
How Does the Single Action Mechanism Actually Work?
The single action mechanism separates two functions that a double action revolver combines into one trigger pull: cocking the hammer and releasing it. Every time you want to fire, you must complete a short, repeatable sequence by hand. The process breaks down into four steps.
- Cock the hammer. Pulling the hammer back with your thumb rotates an internal cam that advances the cylinder to the next chamber and sets the firing mechanism to a ready state under spring tension.
- Align the chamber. A small spring-loaded part called the cylinder bolt locks the cylinder in place so the chamber lines up precisely with the barrel, typically within a fraction of a millimeter of tolerance.
- Press the trigger. Because the hammer is already cocked, the trigger’s only remaining job is releasing the sear, which requires far less force than a double action pull, often in the 2 to 4 pound range on a well-tuned revolver.
- Fire and reset. The hammer falls, the firing pin strikes the primer, and the cycle must be repeated by hand for the next shot, since the trigger does not automatically reset the hammer.
This four-step cycle is the reason single action shooting feels deliberate. Every shot is a conscious decision, not a reflexive squeeze. Most traditional single action revolvers, including replicas of the Colt Single Action Army first produced in 1873, load through a single loading gate on the right side of the frame, meaning each cartridge is inserted and each spent case ejected one chamber at a time rather than all at once.
What Is the Difference Between Single Action and Double Action Revolvers?
The core difference comes down to how many jobs the trigger performs. A single action revolver’s trigger has one job, releasing an already-cocked hammer, while a double action revolver’s trigger performs two jobs in sequence, first cocking the hammer and then releasing it.
- Trigger pull weight: Single action typically runs 2 to 4 pounds; double action mode on a DA revolver often runs 8 to 12 pounds, though most DA revolvers can also be thumb-cocked and fired in single action mode with a lighter pull.
- Firing speed: Double action revolvers allow faster repeat shots because there is no separate cocking step, which matters for self-defense applications.
- Reloading method: Traditional single action revolvers load and unload through a side gate one round at a time, while nearly all modern double action revolvers use a swing-out cylinder that ejects all cases at once.
- Mechanical complexity: Single action mechanisms have fewer internal parts, generally making them simpler to maintain and, according to gunsmithing references from the American Gunsmithing Institute, less prone to timing issues over decades of use.
- Common use case: Single action revolvers dominate cowboy action shooting and collecting; double action revolvers dominate law enforcement backup roles, concealed carry, and hunting.
Neither design is objectively superior. A double action revolver offers speed and flexibility, since you can fire it in either double or single action mode depending on the situation. A single action revolver offers a lighter, more consistent trigger pull for deliberate, accurate shooting, which is precisely why bullseye and cowboy action shooters gravitate toward it.
What Makes a Cowboy Action Revolver Different From a Standard Single Action?
A cowboy action revolver is a single action revolver built or chosen to meet the specific rules of organized Old West shooting sports, most notably those set by the Single Action Shooting Society. SASS, founded in 1981 and headquartered in Edgewood, New Mexico, governs cowboy action shooting matches held at hundreds of clubs across the country, and its rulebook sets firm equipment standards rather than leaving choices open-ended.
Per SASS’s official shooting handbook, competitors must use traditional single action revolvers with a minimum barrel length of 4.75 inches, chambered in a caliber no smaller than .32, and fired with ammunition kept under roughly 1,000 feet per second to reduce target wear and keep the sport safe for close-range steel targets. Calibers such as .357 Magnum.38 Special.44-40, and .45 Colt are among the most common choices on the firing line, largely because they match historical cartridges used in the original 19th-century revolvers and rifles.
Matches typically require two matching revolvers per stage, since most cowboy action stages call for a shooter to fire a rifle, a shotgun, and two single action revolvers in a scripted sequence against steel or reactive targets. Competitors adopt alias names and period costumes, and match scoring combines time on the clock with penalty seconds added for missed or out-of-order targets. If you want to see how these mechanical and cosmetic details compare firsthand, you can browse cowboy action and traditional revolver models to see the single action design in person before deciding which caliber and barrel length fits your shooting style.
How Much Does a Single Action Revolver Cost?
Prices for single action revolvers span a wide range depending on manufacturer, materials, and historical accuracy, generally falling into three tiers.
- Budget tier ($180 to $300): Heritage Rough Rider and similar entry-level models, typically made with alloy frames, aimed at plinking and casual range use rather than heavy competition use.
- Mid tier ($500 to $950): Ruger Vaquero, Uberti replicas, and Cimarron Firearms models, built with steel frames and closer tolerances, popular among cowboy action shooters who need durability across hundreds of rounds per match season.
- Premium tier ($1,200 to $2,800 or more): Colt Single Action Army revolvers and custom-tuned competition guns, often featuring hand-fitted actions, higher-grade finishes, and collector value that can appreciate over time.
Ammunition costs also factor into long-term ownership. Common cowboy action calibers like .38 Special or .45 Colt typically run $25 to $45 per box of 50 rounds for factory ammunition, though many competitive shooters reload their own cartridges to cut per-round costs roughly in half. A shooter competing regularly in SASS-sanctioned matches, which often require 300 to 500 rounds across two revolvers per match weekend, can save several hundred dollars annually by reloading rather than buying factory ammunition.
Why Do Shooters Still Choose Single Action Revolvers Today?
Single action revolvers persist for reasons that go beyond nostalgia. The lighter, cleaner trigger pull produced by the cocking step tends to improve accuracy for slow, deliberate shooting, which matters in disciplines like bullseye pistol competition and long-range revolver shooting. The mechanical simplicity of a fixed cylinder and side loading gate also means fewer parts can fail, which appeals to shooters who value reliability over speed.
Collecting drives a significant share of demand as well. Original 19th and early 20th century Colt Single Action Army revolvers, particularly early production models, can sell at auction for tens of thousands of dollars, according to appraisal data published by the Rock Island Auction Company, which regularly handles historic firearms sales. That collector market keeps interest in the single action design alive well beyond the cowboy action shooting community, drawing in history enthusiasts and firearm investors alike.
Cowboy action shooting itself continues to grow modestly. SASS reports member participation across affiliated clubs in most U.S. states and several countries abroad, with many clubs running monthly matches that draw shooters ranging from teenagers to retirees. The sport’s blend of costume, choreography, and marksmanship gives single action revolvers a cultural role that double action revolvers, built primarily for utility, simply do not share.
What Should You Look for When Buying a Single Action Revolver?
Selecting a single action revolver depends heavily on intended use, and a few practical checks can prevent an expensive mistake.
- Match the caliber to your purpose. If you plan to compete in cowboy action matches, confirm the caliber meets the .32 minimum required by SASS rules before purchasing.
- Check barrel length against sanctioning rules. A barrel shorter than 4.75 inches will disqualify a revolver from most SASS categories, so measure before you buy a used gun advertised as competition-ready.
- Inspect cylinder timing. Cock the hammer slowly and confirm the cylinder locks up tightly before the hammer falls; loose timing is one of the most common and costly used-revolver problems.
- Consider frame material. Steel-frame revolvers generally hold up better to sustained cowboy action use than alloy-frame budget models, which are better suited to occasional range shooting.
- Budget for a second matching revolver. Most cowboy action stages require a pair, so factor that second purchase, typically $500 to $950 for a mid-tier steel model, into your initial budget.
If you already own a double action revolver and are considering a single action for the first time, expect an adjustment period. The deliberate cocking step feels slower at first, but most shooters report improved trigger control within their first 100 to 200 rounds of practice.
Ready to compare designs side by side rather than relying on specifications alone? Handling both a single action and a double action revolver in person remains the most reliable way to decide which trigger feel and reload method suits your shooting goals, whether that means casual range use, home defense, or entering your first cowboy action match.
Frequently Asked Questions
Can a single action revolver be fired quickly like a double action?
No, not without additional practice and technique. Because the hammer must be manually cocked before every shot, follow-up shots take longer unless the shooter uses a fanning or slip-hammer technique common in exhibition shooting, which sacrifices accuracy for speed.
Is a single action revolver safe to carry with all six chambers loaded?
Traditional Colt-pattern single action revolvers are generally not considered safe to carry fully loaded unless they include a transfer bar safety. Older designs without this feature can discharge if dropped on the hammer, so many owners carry with the hammer resting on an empty chamber, loading only five rounds.
What calibers are most common in single action revolvers?
The .45 Colt.357 Magnum.38 Special, and .44-40 Winchester are the most widely used calibers. These match historical cartridges from the 19th century and remain the standard choices for cowboy action shooting and Old West replica collecting.
How many rounds does a typical single action revolver hold?
Most hold six rounds, though some models hold five. The six-round cylinder has been standard since Colt’s original Single Action Army design in 1873, and the vast majority of modern replicas follow that same capacity.
Do single action revolvers require more maintenance than double action models?
Generally, no, since single action mechanisms have fewer moving parts than double action triggers. Routine cleaning after each shooting session and periodic lubrication of the cylinder bolt and hand assembly are usually enough to keep timing accurate for years of use.
Conclusion
A single action revolver rewards patience and precision, asking you to cock the hammer before every shot in exchange for a lighter, more consistent trigger pull. A double action revolver trades that deliberate rhythm for speed, letting the trigger handle both cocking and firing in one motion. Neither approach is wrong, and the right choice comes down to whether you value the historical, deliberate shooting experience tied to cowboy action competition or the faster, more utilitarian handling that double action design provides for everyday defensive use.
Think about how you actually plan to shoot before you decide. If you’re drawn to Cowboy Action Shooting, hunting with a revolver, or just want a gun that connects you to the Old West feel of a Colt Peacemaker clone, the single action design fits naturally into that slower, more deliberate pace. If you need a gun for home defense or concealed carry, where a fast follow-up shot under stress matters more than tradition, a double action revolver or semi-auto will serve you better. Cost matters too. Single action revolvers tend to run cheaper for entry-level models but climb quickly once you add custom grips, tuned actions, or engraving. Try both styles at a range before buying, since the grip angle and trigger feel differ enough to change your accuracy right away.
