WheelGunsRevolvers, explained
Head to head · Big-bore cartridges · editorial reference

.44 Special vs .45 Colt: The Gentleman's Big Bores

Two old, fat, slow cartridges that hit with authority and recoil like a polite shove. One grew up into the .44 Magnum. The other armed the U.S. Cavalry. Here is how to pick between them in 2026.

Updated October 28, 2026·8 min read
Short answer

Both are mild, big-bore revolver cartridges with standard pressures well under half of a magnum. Pick .45 Colt if you want single-action tradition, cowboy-match ammo and the widest choice of new revolvers. Pick .44 Special if you want a compact big bore like the Charter Bulldog, or a .44 Magnum revolver you can shoot gently most of the time.

Two cartridges, one temperament

Put a .44 Special and a .45 Colt side by side on the counter and most people can't tell you which is which without reading the headstamp. Both are straight-walled, rimmed, heavy-bulleted and slow. Both were built for a world of lead bullets and big cylinders. Neither was designed to impress a chronograph.

That shared temperament is exactly why people love them. A big, heavy bullet moving at modest speed gives you a deep, flat boom and a recoil impulse that rolls rather than snaps. In a steel revolver of decent weight, both are pleasant to shoot for a long afternoon. The differences are in history, in the guns you can buy, and in what each cartridge can grow into.

Where each came from

.45 Colt: the Army's cartridge

The .45 Colt is the elder by a generation. Colt and the Union Metallic Cartridge Company developed it as a black-powder round for the new Colt Single Action Army, and the U.S. Army accepted it in 1873. The original Army load was a stout one, a 255-grain lead bullet at roughly 850 to 900 feet per second, and it kicked hard enough that the Army later toned it down to around 800.

It has an awkward bit of history, too. The Army also bought the Smith & Wesson Schofield, whose cylinder was too short for the Colt round, and for a while ordnance shipped the shorter .45 Schofield to everybody. That's one common explanation for why shooters still say ".45 Long Colt", a name that never appeared on a box from Colt. There was never a ".45 Short Colt". Whatever you call it, the cartridge outlived the cavalry, the frontier and most of the guns built for it.

.44 Special: the one that grew up

Smith & Wesson created the .44 Special in 1907 and introduced it in 1908 as the chambering for its big New Century revolver. It is a lengthened .44 Russian, a hair longer to hold a little more powder, and it was never a hot cartridge from the factory.

Handloaders saw potential. By the late 1920s enthusiasts were pushing it well past factory velocities, and writer Elmer Keith became the cartridge's loudest champion. His experiments pointed straight at the .44 Remington Magnum, which arrived in 1956 as a .44 Special case lengthened by about an eighth of an inch. That extra length is deliberate: it keeps a high-pressure magnum round from chambering in an older, weaker .44 Special gun.

The magnum nearly killed its parent. Then cowboy action shooting, and shooters who wanted a softer big bore, gave the .44 Special a second life.

Side by side

Spec.44 Special.45 Colt
Introduced1907–1908 (Smith & Wesson)1872–1873 (Colt and UMC, for the U.S. Army)
Parent case.44 Russian, lengthenedOriginal design
Bullet diameter.429 in.452 in
SAAMI maximum pressure15,500 psi14,000 psi
Grown-up sibling.44 Magnum (36,000 psi) fires in the same guns' magnum versionsNo direct magnum sibling; heavier loads exist only for specific strong guns
Typical revolversCharter Bulldog, .44 Magnum revolvers, some GP100s and SAA-style gunsColt SAA and clones, Ruger Vaquero and Blackhawk, Anaconda, Judge and Governor
Cowboy actionCommonVery common, the classic choice

The pressure numbers tell the main story. Both cartridges are low-pressure rounds, and neither is anywhere near the .44 Magnum's 36,000 psi ceiling. The .45 Colt's rim is notably narrow, a holdover from its early days, which is one reason the cartridge was slow to appear in rifles. Modern cases have a proper extractor groove, so it's a non-issue in a revolver.

The guns decide it

For most people, the cartridge question is really a revolver question. Which guns do you want to own?

Where .44 Special shines: compact big bores and magnum flexibility

The .44 Special's slightly smaller case lets designers build five-shot big bores on surprisingly small frames. The Charter Arms Bulldog is the poster child. Ammunition Depot's listing for the standard stainless model shows five rounds, a 2.5-inch barrel and 21 ounces, which is very light for anything with a .44 on the barrel. It's the gun our Bulldog and .44 Special piece argues for.

The other .44 Special advantage is quiet but large: every .44 Magnum revolver fires it. Own a 629, a Super Redhawk or a Super Blackhawk and you already own a .44 Special. You can shoot it gently for practice and keep magnum loads for the field. That kind of flexibility is why .44 Special loads are such a sensible first box for a new magnum owner.

Ruger has also chambered the five-shot GP100 for .44 Special, and a few SAA-style guns come in it, such as the Cimarron Bad Boy listed in Ammunition Depot's revolver catalog.

Where .45 Colt shines: single actions and selection

If you picture a cowboy revolver, you are picturing a .45 Colt. The Colt Single Action Army, the reproductions from Uberti, Pietta and others, the Ruger Vaquero and Blackhawk: the cartridge is part of their identity. Ruger's Blackhawk in .45 Colt, for example, is a 7.5-inch, six-shot, 42-ounce single action according to Ammunition Depot's listing, adjustable sights and all.

The .45 Colt also turns up in double actions. Ammunition Depot's revolver catalog lists .45 Colt versions of the current Colt Anaconda alongside the .44 Magnum ones, plus Smith & Wesson's Model 25 Classic and Charter's Bulldog XL. And it's the "45" in the .410-shotshell revolvers like the Taurus Judge and S&W Governor, which we cover in our Governor review.

About heavy "Ruger-only" loads

Search the .45 Colt online and you'll run into talk of "Ruger-only" loads. Some reloading manuals have printed a separate, higher-pressure section for the .45 Colt, intended only for strong modern large-frame revolvers such as the Ruger Blackhawk, Redhawk and the original large-frame Vaquero. Those loads are not for Colt SAA reproductions, which have thinner cylinder walls, and they are not for the smaller-framed New Vaquero either.

We are not going to print any of those recipes, and you should treat them as a specialist handloader's topic, not a reason to buy a cartridge. For factory ammunition, the rule is simple: if the box is standard .45 Colt, it is meant to be safe in any sound gun chambered for it. If the box carries special warnings about which revolvers it's for, read them and believe them.

The .44 Special doesn't have this split personality. When a .44 shooter wants more, he buys .44 Magnum and a gun built for it.

Barrel stamp rules. Fire only what the barrel or cylinder is marked for. A .44 Magnum revolver fires .44 Special, never the reverse. A .45 Colt revolver does not fire .45 ACP unless it has a cylinder made for it. Old guns, especially black-powder-era originals, should see a qualified gunsmith before they see any ammunition.

Shooting and feeding them

At the range, both feel similar in a gun of similar weight: a deliberate push with plenty of muzzle rise and a big, satisfying report. Heavier guns make them gentle; a 21-ounce Bulldog makes either one lively. If recoil is your concern, pick the gun first and the cartridge second. Our big-bore recoil guide covers grip and stance.

Ammunition is where the .45 Colt has a quiet edge. At Ammunition Depot, the .45 Long Colt ammo category ran to a few dozen listings when we looked, from cowboy loads such as Magtech Cowboy Action 250-grain lead flat nose to Remington's Performance WheelGun 250-grain round nose. The .44 Special category is smaller, around twenty listings when we checked, with options like HSM Cowboy Action 240-grain semi-wadcutter.

Two practical notes:

Which one should you buy?

If you want tradition and choice, buy .45 Colt. If you want a light, carryable big bore or a magnum that can whisper, buy into .44 Special. Neither is a wrong answer; they are two dialects of the same slow, heavy, honest language.

Editorial note: This is an independent editorial overview built from manufacturer specifications, retailer listings and published sources. We have not performed hands-on testing of the products discussed, and nothing here is a performance guarantee. Verify specifications, compatibility and the law where you live.

Frequently asked questions

Can a .45 Colt revolver shoot .44 Special, or the reverse?

No. The bullets are different diameters (.452 versus .429 inch) and the cases differ. Fire only the cartridge marked on the barrel or cylinder.

Can I shoot .44 Special in a .44 Magnum revolver?

Yes. .44 Magnum revolvers are designed to fire .44 Special, which makes a gentler practice load. The reverse is never safe: .44 Magnum must not be fired in a .44 Special-only gun.

Is .45 Colt the same as .45 Long Colt?

Yes. ".45 Long Colt" is a common nickname for the .45 Colt cartridge. There was never an official ".45 Short Colt"; the shorter Army round of the era was the .45 Schofield.

Which has more recoil, .44 Special or .45 Colt?

With standard factory loads in revolvers of similar weight, they feel similar: a slow push rather than a sharp snap. The weight of the gun matters more than the choice between these two cartridges.

Which is better for cowboy action shooting?

Both are used. .45 Colt is the classic choice with the widest selection of guns and cowboy loads, while .44 Special is also popular, especially with shooters whose rifle is chambered in a .44.

Sources and further reading

Affiliate disclosure: Some links on this page are affiliate links to Ammunition Depot. We may earn a commission if you buy through them, at no extra cost to you. Our editorial choices are not influenced by commissions. Check current price, stock and specifications directly with the retailer.