Finding accurate .38 Special load data is essential for maximizing the accuracy, mild recoil, and extreme versatility of this legendary revolver cartridge.
This guide compiles comprehensive .38 Special reloading data to help you safely develop the perfect load for target practice, competition, or personal defense.
Whether you are dropping light powder charges for 148-grain wadcutters or loading modern 158-grain jacketed hollow points, always cross-reference these published figures before charging your cases.
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.38 Special Load Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity | Barrel Length / Firearm | Source |
| Hornady XTP | 110 gr | HP-38 | 4.5 gr | 5.0 gr (16,300 CUP) | 900 – 1,000 fps | 7.7″ / Universal Receiver | Hodgdon |
| Hornady XTP | 125 gr | Titegroup | 3.2 gr | 3.8 gr (16,000 CUP) | 850 – 950 fps | 7.7″ / Universal Receiver | Hodgdon |
| Speer HBWC (Lead) | 148 gr | Bullseye | 2.5 gr | 2.8 gr (15,000 PSI) | 700 – 800 fps | 6″ / Universal Receiver | Alliant Powder |
| Cast LSWC | 158 gr | W231 | 3.4 gr | 3.8 gr (15,900 CUP) | 750 – 850 fps | 7.7″ / Universal Receiver | Hodgdon |
| Hornady XTP | 158 gr | Unique | 4.0 gr | 4.5 gr | 700 – 800 fps | 6″ / Universal Receiver | Alliant Powder |
.38 Special Reloading Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity | Barrel Length / Firearm | Source |
| Barnes TAC-XP | 110 gr | AutoComp | 5.2 gr | 5.8 gr (+P 19,500 PSI) | 950 – 1,050 fps | 7.7″ / Universal Receiver | Hodgdon |
| Speer GDHP | 125 gr | Unique | 4.5 gr | 5.2 gr (+P 18,500 CUP) | 950 – 1,050 fps | 6″ / Universal Receiver | Speer Bullets |
| Speer GDHP | 135 gr | Power Pistol | 5.4 gr | 6.0 gr (+P 19,000 CUP) | 900 – 1,000 fps | 6″ / Universal Receiver | Speer Bullets |
| Hornady XTP | 158 gr | HS-6 | 5.8 gr | 6.6 gr (+P 19,400 CUP) | 850 – 950 fps | 7.7″ / Universal Receiver | Hodgdon |
| Cast LRN | 158 gr | Titegroup | 3.2 gr | 3.8 gr (15,500 CUP) | 750 – 850 fps | 7.7″ / Universal Receiver | Hodgdon |
Understanding the .38 Special Reloading Data
Reading .38 Special reloading data requires a strict understanding of the cartridge’s operating pressures, which are divided into standard and “+P” (overpressure) categories. Introduced in 1898 for black powder, the standard .38 Special case has massive internal capacity for modern smokeless powder, making double-charging a serious hazard. When reviewing the tables above, you must identify whether the data corresponds to standard pressure limits for vintage revolvers or higher +P limits meant strictly for modern firearms stamped and rated for +P ammunition.
.38 Special Bullet Weight Reloading Data
The .38 Special utilizes a standard .357-inch bullet diameter and performs exceptionally well with weights spanning from 110 grains up to 158 grains. Lightweight 110-grain and 125-grain jacketed hollow points (JHPs) are widely preferred for personal defense because they achieve the necessary velocities for reliable expansion. Conversely, 148-grain lead wadcutters and traditional 158-grain lead semi-wadcutters (LSWC) remain the absolute gold standard for target shooting, offering pinpoint accuracy and deep, straight-line penetration.
.38 Special Powder Reloading Data
Powder selection for the .38 Special relies exclusively on fast-burning to medium-fast pistol propellants. Classic powders like Alliant Bullseye and Unique have been used to load this cartridge for over a century. Modern spherical and flake powders such as Winchester 231 (W231), Hodgdon HP-38, Titegroup, and AutoComp provide exceptionally clean burns and meter flawlessly in progressive reloading presses. Because the powder charges are remarkably small (often between 2.5 and 5.0 grains), a single pound of powder can load over a thousand rounds.
.38 Special Bullet and Powder Combinations
Pairing the right bullet with the appropriate powder is vital for achieving the specific recoil and accuracy profile you desire. The most famous target load in history is a 148-grain hollow-base wadcutter (HBWC) seated flush with the case mouth over a minuscule charge of Bullseye or Titegroup. For self-defense or duty loads, pairing a 125-grain or 158-grain jacketed hollow point with medium-speed pistol powders like Unique, Power Pistol, or HS-6 provides the optimal balance of velocity and manageable recoil.
.38 Special Velocity From Published Data
Published velocity figures for the .38 Special emphasize its role as a mild, subsonic cartridge. Target loads utilizing 148-grain wadcutters typically travel at a leisurely 700 to 800 fps, producing virtually no recoil. When loaded to +P pressures with 125-grain bullets, the cartridge can comfortably exceed 1,000 fps out of a standard test barrel. These modest velocities mean that heavy lead bullets rarely suffer from severe barrel leading, making cast bullets highly economical and popular for high-volume shooters.
.38 Special Reloading Data by Barrel Length
Most published load data for the .38 Special utilizes long 6-inch or 7.7-inch vented laboratory test barrels to maximize powder combustion. In the real world, the .38 Special is most frequently carried in short-barreled “snub-nose” revolvers featuring 1.875-inch or 2-inch barrels. If you fire a standard test load out of a snub-nose revolver, you will experience a drastic velocity loss, often dropping 150 to 250 fps below the published figures due to the extremely short burn time.
.38 Special Energy and Ballistics
The .38 Special is not designed to deliver magnum-level kinetic energy; instead, it relies on precise bullet placement and adequate penetration. A standard 158-grain bullet traveling at 800 fps generates roughly 225 foot-pounds of energy at the muzzle. While its arched trajectory makes it a poor choice for distances beyond 50 yards, its mild recoil and low muzzle blast make it one of the most controllable and inherently accurate centerfire handgun cartridges ever created.
.38 Special Hunting Applications
While the .38 Special is primarily recognized as a personal defense and target cartridge, it possesses excellent utility as a small game and camp gun round. Loaded with 158-grain semi-wadcutters, it is highly effective for harvesting rabbits, squirrels, and raccoons without destroying edible meat. It is generally considered underpowered for medium game like deer, and hunters should step up to the much more powerful .357 Magnum for ethical big game hunting.
Manufacturer Data vs. Independent Testing
Because the .38 Special is chambered in revolvers spanning over 120 years of production, relying exclusively on official manufacturer data is critical for safety. Independent forum data often features handloaders attempting to push the .38 Special into .357 Magnum territory, which can catastrophically blow up a vintage top-break or early K-frame revolver. Always use official manufacturer data to ensure your loads respect the structural limits of the specific era of firearm you are shooting.
.38 Special Pressure and Safety
The SAAMI Maximum Average Pressure (MAP) for the standard .38 Special is set at a very low 17,000 PSI, while the .38 Special +P is elevated slightly to 20,000 PSI. The most significant safety hazard when reloading the .38 Special is throwing a “double charge.” Because the case is long and the fast-burning powder charges are incredibly small, a double charge of powder will easily fit inside the case without overflowing. You must visually inspect the powder level in every single case before seating the bullet.
Best Sources for .38 Special Reloading Data
The most reliable sources for .38 Special load data are the printed manuals and digital databases provided by major powder and bullet manufacturers. The Hodgdon Reloading Data Center offers extensive, free digital tables covering standard and +P loads for their entire line of pistol propellants. Additionally, the Hornady and Speer reloading manuals provide meticulously tested recipes tailored to their highly popular jacketed hollow points and lead target bullets.
Frequently Asked Questions
Where can I find .38 Special reloading data?
You can find accurate .38 Special reloading data in published manuals from Hornady, Speer, and Sierra, or digitally on the official Hodgdon Reloading Data Center website.
What powders are listed in published .38 Special data?
Commonly listed fast-burning pistol powders include Bullseye, Winchester 231, HP-38, Titegroup, Unique, AutoComp, and Power Pistol.
What bullet weights are covered in these tables?
These tables cover the optimal .357-inch bullet weights for the cartridge, ranging from 110-grain hollow points to classic 148-grain wadcutters and traditional 158-grain lead bullets.
Does barrel length affect .38 Special velocity?
Yes, shooting from a 2-inch snub-nose revolver rather than a 6-inch or 7.7-inch test barrel will result in a massive velocity loss, often dropping speeds by 150 to 250 feet per second.
Can I use standard rifle primers for .38 Special?
No, you must use standard small pistol primers, as rifle primers feature thicker cups that can cause misfires due to the lighter hammer strikes of double-action revolvers.
What is the difference between .38 Special load data and reloading data?
There is no practical difference; both terms refer to the precise recipes of powder charges, bullet weights, and primers required to safely assemble the cartridge.
Why do published velocity figures differ between sources?
Velocity figures differ because testing facilities use varying specific test barrels (vented vs. unvented), distinct environmental conditions, brass capacities, and primer types during their testing.
Should I use the maximum published load?
You should never start with the maximum published load; always begin with the minimum recommended starting charge and carefully work up while monitoring for pressure signs and ensuring reliable extraction.
Can I use data from one bullet manufacturer for another bullet?
You should only use data specifically designed for the exact bullet profile you are loading, as variations in seating depth (especially with flush-seated wadcutters) drastically alter chamber pressures.
Where should I verify .38 Special load data before reloading?
You should strictly verify all load data against an official, recently published manufacturer manual or a powder company’s official online database before assembling any ammunition.