The Reliability of the Revolver vs. the Semi-Automatic Handgun

By David Tong

Revolver vs. the Semi-Automatic Handgun
Revolver vs. the Semi-Automatic Handgun

AmmoLand Gun News

USA -( I would like to preface this by stating at the outset that this is my opinion, after having used both types of handguns for nearly four decades.

The revolver is largely a 19th Century creation. Other than the creation of the double-action lockwork and a side-plate-less frame (thanks, Ruger), the inherent technology of the revolver pre-dates the Civil War.

Single & Double Action Revolver

Proponents of the revolver usually state that their outward simplicity to make them work, as opposed to their internal complexity of operation, is one of their key points. They will nearly always say “Six shots for sure,” as nearly a mantra when they compare them to self-loaders as “jamamatics.”

Revolvers comprise a revolving cylinder, bored through with five to ten cartridge chambers, rotating about a central axle. This is mounted into a frame or receiver. This cylinder is rotated into place by an advancing hand, which contacts small machined pads on the rear of the cylinder to precisely rotate the cylinder from chamber center to firing pin center of the hammer, repeatedly with each cocking of a hammer or pull of the trigger (in the case of a double-action revolver).

Cylinder rotation is stopped by a spring loaded bolt, which is also usually timed by trigger motion, so that chambers containing the rounds are precisely indexed in line with the fixed barrel, and thus will not shave bullet or jacket material due to off center impacts with the rear of the barrel. There is nearly always a gap between cylinder face and rear of the barrel called the “barrel-cylinder gap.” Hot gases and noise are expelled from this gap on top of the muzzle of the arm.

A revolver may be a single action, which requires a shooter to cock the hammer each time to set all these parts in motion manually, and must also be loaded and unloaded one round at a time manually as well. This is a slow and detailed process.

A double-action, swing-out cylinder revolver is slightly simpler in that all current ones allow for simultaneous extraction and ejection of the spent cases, but the opening and closing of the cylinder and punching the ejector rod is still done manually. Reloading the DA revolver can be accomplished with the use of a so-called “speedloader,” but sometimes there are alignment issues with the chambers of the revolver, and sometimes the grips get in the way of placing the speedloader in position, or to make ejection of the spent cases difficult due to their shape behind the cylinder’s rear.

Primarily though, a revolver can be quite reliable if all of those interacting pieces are made of superior metals, of superior heat-treatment, but the shooter is still responsible for making them work.

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Revolvers used to primarily use lead bullets both in military and police service, as well as for civilian match shooting. Cowboy action shooters still do use them.

Lead is of course a toxic material, and leaves much residue if it is of a softer alloy lower in tin content.

This can cause barrel fouling, and the face of the cylinder can often be found caked with both lead and powder residue that must periodically be cleaned to ensure that the barrel-cylinder gap is still sufficient to allow free turning of the cylinder in order to function correctly, Moreover, one has to clean each individual chamber, the rear face of the cylinder where the ratchet pads are, as well as scrub the rear face of the frame where the advancing hand and firing pin holes can also be partially blocked by residue.

Thus, while the revolver is outwardly simple, the need for mechanical complexity and user operation ease are nearly polar opposites. Typically, a revolver shooting modern jacketed bullets can be shot 1,000-1,500 rounds before needing a decent cleaning, and they would be completely reliable to that round count for the most part.

The primary advantage, to me, of the revolver, is that it can be loaded with cartridges of greatly varying bullet weights and pressure curves. Thus, a .38 or .44 Special with their mild noise levels and recoil can be used for training and precision target shooting, while the .357 and .44 Magnum rounds can be used for hunting and self-defense against large animals or dumb criminals.

Semi-Automatic Pistol

In contrast though, the semi-automatic pistol has replaced the revolver for nearly all uses besides hunting big game (deer-sized, anyway, or protection from large carnivores such as bears or cougars). The reasons are many, but they can be distilled thusly.

First, the semi-automatic pistol is the product of the development of both smokeless powder and the jacketed bullet. Higher pressures are possible, and the jacketed bullets designed with their handguns from the outset mean that they run typically cleaner. Having only one chamber which is machined integrally with the rifled tube means there’s less to clean.

Secondly, the semi-automatic’s internal complexity is designed to have the shooter work LESS hard to make his/her handgun function. When the trigger is pressed, a hammer strikes a firing pin, or a striker falls to hit a primer, the round is discharged. After pressures have dropped, the semi-auto’s slide moves backward under gas pressure, and the empty case is simultaneously extracted and ejected automatically. Reloading is accomplished by the slide returning into battery after stripping a round from the top of the detachable magazine, and usually a semi-auto holds at least six rounds, and up to twenty or more.

When the shooter needs to replenish the magazine, a spring loaded button is depressed, the magazine falls free, and in one stroke a loaded one is replaced.

Third, the straight-line action of the semi-auto pistol can promise even greater reliability than the revolver. Indeed, most of us have read the stories of how 1911, Glock, and HK pistols have shot many thousands of rounds without even a basic cleaning. The late Todd Green (of conducted a test of the Heckler and Koch HK45 pistol several years back, firing some 50,000 rounds through his pistol in eight months. The pistol had ONE malfunction, ONE trigger bar return spring replacement, and averaged 7,000+ rounds between cleanings during the test. The recoil spring and magazine springs were not replaced, and the pistol shot equally tight groups at the end as it did at the beginning, while all the rounds save 120 were full-power police service loads.

This is well-beyond the kind of use most of us will put through either a revolver or semi-auto handgun in our lifetime, but it illustrates that the old saw about “six for sure” isn’t really accurate any longer.

I have personally shot more than 1,000 hard linotype target bullets through a 1911 pistol several times, and had no issues at all. The one weakness in the semi-auto pistol is the quality of the magazine and its feed geometry though. It MUST be made of quality materials, and it MUST offer up the top round in a predictable and slightly nose-high attitude to best provide as straight a path to the chamber as possible (and bypassing the feed ramps as much as possible). Most quality magazines can be had in the $20-45 range, so they won’t break the bank of anyone who just laid out $500+ for their handgun.

While I do have remaining reservations about the very small micro-compact auto pistols’ reliability versus a snub revolver used at very close ranges, even this may be overplayed by “round-gun” aficionados. Modern computed aided design and machining has pretty much put-paid to malfunctions of even the small semis if built by a Tier One level quality manufacturer.

It is my view that as (primarily) a defensive tool, a semi-automatic has much to recommend it because it can be equally reliable if not more so, in extremis. I don’t believe I am alone in this assessment either, as a visit to your local gun store will show that the handguns that are primarily purchased these days are the semi-automatics.

Please do not let this be a blanket endorsement of the overall superiority of the semi-automatic. It is not. It is simply my opinion, even if borne out by decades of experience.

There are some purposes alluded to above where the revolver’s user simplicity, ammo power flexibility, and potentially-wider usage is compelling. They both have a place.


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tim mullady

This is hilarious a semi auto is more reliable than a revolver. I guess any idiot can write about guns today.


2 or 3 points from a GunSmith since 2009….
1) a Revolver will consistently Fire ANY round ( especially Defense Rounds ) that you put in it…. a semi-auto, NOT so much….. The 1st question that I ask the customer when he brings me a semi-auto to work on that is jamming is — What kind of ammo are you shooting ?

2) I have had to work on Far MORE Semi-Auto pistols than Revolvers over the years…

3) Some ladies have a hard time racking the slide on a Semi-Auto…..

As with anything, Maintenance is important.

Dr. Fred

I’m a wheel gunner, I admit it. Of the age where you cut your teeth on revolvers. But here’s my two cents worth on the issue. I’ve shot both revolvers and semi-auto’s. My Browning jammed after ten shots. (Good thing I didn’t need a re-load.) My Springfield Armory XD FTF after 50 shots. My Micro-compact throw cartridges at my head. I have nothing but praise for my Firestar. It was perfectly reliable, accurate, throw the cartridges right. Of course, they no longer make them. My Ruger .22 is perfectly reliable. Had an FTF, but I fixed it by cocking and… Read more »


Dr. Fred, not all semi autos are created equally just like with revolvers. Budget and antiquated designs shouldn’t be the estimation of semi auto performance. A Glock is minimum standard for an auto that should be entertained for reliability. There are so many solid designs that have well surpassed reasonable reliability testing. Sig P226, P228, HK USP series, HK 45, P30, Smith and Wesson M&P and the list goes on. One hand reloads can be performed by holding the pistol in your armpit, back of the knee while kneeling, or in the holster. The slide is easily placed into battery… Read more »

Dr. Fred

Bill: Thanks for the list of reliable semi-auto’s. I’ve pondered whether to buy an S&W M&P SA (there’s a load of alphabet soup for you). I’ve had several S&W revolvers, one M&P. It was a .357 and made of titanium (ouch). Accurate and reliable, and you could speed (re)load it. Yes, I was stunned when my Taurus was unreliable, not being used to that in revolvers, but my .44M FTF’s at half the rate of the Springfield (which I noticed you don’t seem to care too much for). The main reason for my preferring revolvers is age (mine), my comfort… Read more »


Not a fan of the XD series because they have a needless gripnsafety that can get debris in it and lock the gun up. I have no dog in the fight and I agree you should use what you are most comfortable with. The best gear in the world wont make up for proficiency and training. That being said, good gear you understand well helps too. Glad I could offer a solution to your single hand reloads.


Well the comments section didn’t disappoint. Revolver guys and gals will defend unto the bitter end. I like them both but there is a reason no military units or law enforcement agencies use revolvers. Perhaps instead of faulting the Devil semi auto many of you should train. Just a thought. It’s a terrible thing to live in fear of a negligent discharge. Carry what you are comfortable with and don’t judge others choices because of it. Wheel guns are capable but not clearly superior in many ways. I can never understand why there is some apprehension to carrying more rounds… Read more »

Fred Young

I have owned both semi-autos and revolvers over the years. My first gun was a revolver. I am more accurate with them than with an SA, and they are better for situations involving wild animals. Not only can they hold heavier loads, for bear or whatever, but you are much more likely to be in a Zimmerman situation with the predator on top of you than you would be in urban combat. Try shooting an SA with the slide slightly back, which, under stress, can happen a lot. A revolver is simply better for wet work. As to the advantage… Read more »

Jim Greaves

Great advice from everyone, and I appreciated the mild rebuke about reloading time – I’d really never thought about it until I read the article and “guess-timated”. I still go back and forth over which I prefer. I grew up playing cowboys and “native” watch-a-ma-calls-them, using realistically sized (for a child) “six gun” and learning to draw fast and spin the gun (a stupid behavior, but fun when it was only caps…). So, while I prefer the “fire power” of SA, I subliminally prefer a small revolver (usually those are .38 or smaller)… probably some submerged memory thing. 🙂 May… Read more »


I have both a Glock 17 and a Ruger SP 101 4.2″ barrel. They are both excellent sidearms and I love them both, but fully understand the different benefits AND limitations that exist between the two. It can very much boil down to who is handling the firearm and his/HER capabilities. The Glock took a bit more effort to load a magazine, chamber a round, and control the shot. Being a woman and being ambidextrous, working with horses and doing my own chores, I am not weak by any consideration, but that was a factor to keep uppermost. However, after… Read more »


…Always remember the George Zimmermann situation: held flat on back by a stronger foe; both arms pinned; head being smashed against concrete; your strength fading fast–absolutely no chance to use 2 hands to rack slide or cock a hammer-down gun—-in that situation a one-hand point and shoot gun is essential for your survival !!! DMD


A round should already be in the chamber and a striker gun has no hammer. Nor do DA/SA guns require a hammer cocking either.

Joel Widman

Another point is that in a close quarters self-defense situation you can forget about reloading, you have to solve the problem with what’s in the gun and to that extent the larger capacity semi-auto is clearly superior to the 5, 6 or even 7 shot revolver.

Harold Daniels

As an NRA instructo,r I usually recommend a revolver to those who have little or no previous skill or knowledge about defensive handguns. Unless a student is willing to put in the time and effort to truly understand the proper handling and operation of the semi-automatic pistol he or she chooses a revolver is a much better choice – simpler operation and less chance under extreme condition to mis-manage the handgun.

Jim Greaves

Not with a transfer bar safety (Ruger, for example). Better than a thumb safety with a 1/8 inch distance between safe and fire that I KNOW from experience can be moved to “fire” without intent (though that time I had no round in chamber).

Wild Bill

Revolvers don’t leave all that embarrassing forensic evidence lying around, after you leave.


Condition 2. With the hammer down a sharp blow to the back of the hammer will set it off…. No?

John Dunlap

Jim Greaves, I tracked down some statistics for you. I’ve read before that the average number of shots fired in an encounter is around two, and this article confirmed that. I was surprised, however, that revolver shooters tend to empty their weapons at an attacker more often than auto shooters. I am mystified as to where you got the idea that it takes over a minute to reload a revolver. I’m no Jerry Miculek, but a full reload, even with loose rounds from my pocket, takes me less than fifteen seconds. The mindset of the defender is probably more… Read more »

Jim Greaves

My personal view, having NOT shot thousands of rounds, but having carried each type while doing wildlife work for my personal safety (primarily against humans) is that the Semi-auto is superior in several ways. It is lighter weight – have you hefted a .45 Semi and a .44 mag? The latter is nearly double the weight, and holds only 5-6 rounds, takes over a minute to reload, while a .45 Semi can hold up to 10 (more?) and takes about 5 seconds to reload. So for both ease of use, so-called “fire power”, weight, and time needed for defense, the… Read more »


Any revolver, DA or SA, for safety’s sake needs to be carried on an empty chamber unless it is fitted with a transfer safety bar. Under that condition it is a far safer firearm than most semi-autos. Additionally it generally will handle a more powerful cartridge should one require it. A semi-auto, however, is a better choice for self defense against an antagonist if one is proficient in its’ use. Contrary to common theory, in most situations I prefer to carry a 1911 in Condition 2 with a round in the chamber and hammer down. It is impossible to have… Read more »


I have been shooting far longer than the writer (since @1949) and my opinion differs. I have had many more failures with revolvers – including quality S&W (M&P mod 10). I see the usual erroneous comments about complexity, more moving parts, etc., while in fact a simple blowback auto has far fewer moving parts to fail than any revolver. The complexity and precision of a modern revolver may be a wonder to behold, but give me a simple blowback .380 for SD.

John Dunlap

Improvements in design and ammunition quality have made the reliability issue virtually moot. Both systems have their strengths and weaknesses, as several comments have discussed in detail. I prefer the revolver for one, and only one, reason. I’m left handed. Yes, most contemporary autos have ambidextrous controls, but what none (under a couple grand, that is) has is an ejection port that spits empties to the left. That isn’t a problem as long as the gun is out at arms length. However, if I have to have it back in a retention position close to the body, there’s a very… Read more »


Besides greater ammo capacity as a general rule, one advantage of pistols is that they are flatter and easier to conceal. Revolver thickness goes up rather quickly as caliber increases. That or they reduce capacity to 5 rounds. But odds are, even if you need to shoot, you’ll never need all 5 rounds. I’ve gone over 70 years never needing any, and I’d like it to stay that way.

Whiskey For My Men Beer For My Horses

For me it is hard to trade off my semi auto with three sixteen round mags for a revolver. As far as working my safety prior to a gun fight if I can’t instinctively click it off (from lots of range time training) I probably should not carry it. With that said I am going to buy an American made 9mm revolver for the hell of it when I find a good deal on one. Which ever hand gun someone buys they need to get mega range time in so if they ever need to use it in a self… Read more »

Phil Mann

One point I did not see addressed here and that I think is relevant concerns mechanical safeties. Revolvers don’t need or use them and rely on the relatively heavy DA trigger pull to avoid unintentional discharges. On 1911-style semis, the thumb safety is essential to safe carry of the pistol. (I am admittedly not too familiar with modern DA semis with decocking levers and such.) True, it’s a small matter to flip the thumb safety off while bringing the pistol into action, but still that is one more step you have to execute before the pistol will fire. In the… Read more »


While it is faster to replace an empty magazine with a full one, when you run out of loaded magazines it takes a LONG time to refill them. A semi-auto user without a full magazine available is reduced to having a very slow to reload single-shot. Some will not fire unless a magazine is inserted. A revolver is complete in itself and does not need a speedloader to reload it.


For self defense revolver wins, hands down!


I should have also added that some Defensive rounds with HANG up in the Magazine…. and NOT at the load point…. because of how the bullet point is designed….


I would add one point about snub-nosed revolvers. The next time you’re practicing with one think about reloading after emptying the cylinder. It’s been said that in a close combat situation 2.3 rounds are fired on average. But if you have a 2″ barrel– or shorter– see how long it takes you to reload your empty cylinder, even with a speed loader. With shorter than a 3″ barrel, the ejector rod may be too short to extract the spent casings completely. Hopefully this will never be an issue for any of us.

Clark Kent

Exactly why is ‘six for sure’ not really accurate any longer?


I’d like to know also….


1. Revolver is far safer for untrained person
2. Easier to load and unload
3. Easier to verified loaded/unloaded condition
4. Revolver is inert after firing several rounds
5. Most semi-autos are dangerous “coiled snake” ready to immediately fire again after firing several rounds
6. Danger of carrying SA: 99% — possibility of SA use: 1% all = very poor risk to result ratio