Finding accurate .204 Ruger load data is essential for maximizing the velocity and precision of this highly effective varmint cartridge.
This guide compiles comprehensive .204 Ruger reloading data to help you safely develop the perfect load for your rifle.
Whether you are shooting lightweight 32-grain projectiles or heavier 40-grain bullets, always cross-reference these published figures before heading to the reloading bench.
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.204 Ruger Load Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity | Barrel Length / Firearm | Source |
| Hornady V-MAX | 32 gr | H4895 | 26.0 gr | 27.5C gr (56,800 PSI) | 3,846 – 4,054 fps | 24″ / Universal Receiver | Hodgdon |
| Nosler Ballistic Tip | 32 gr | BL-C(2) | 28.5 gr | 30.5 gr (56,200 PSI) | 3,850 – 4,075 fps | 24″ / Universal Receiver | Hodgdon |
| Berger Varmint | 35 gr | Benchmark | 24.0 gr | 25.8 gr (57,000 PSI) | 3,610 – 3,830 fps | 24″ / Universal Receiver | Hodgdon |
| Sierra BlitzKing | 39 gr | CFE 223 | 28.0 gr | 29.8 gr (57,100 PSI) | 3,678 – 3,890 fps | 24″ / Universal Receiver | Hodgdon |
| Hornady V-MAX | 40 gr | Varget | 25.5 gr | 27.0C gr (56,000 PSI) | 3,550 – 3,750 fps | 24″ / Universal Receiver | Hodgdon |
.204 Ruger Reloading Data
| Bullet | Bullet Weight | Powder | Published Starting Load | Published Maximum Load | Published Velocity | Barrel Length / Firearm | Source |
| Hornady V-MAX | 32 gr | CFE 223 | 29.0 gr | 31.2 gr (56,500 PSI) | 3,900 – 4,115 fps | 24″ / Universal Receiver | Hodgdon |
| Sierra BlitzKing | 32 gr | H322 | 23.5 gr | 25.0 gr (57,200 PSI) | 3,750 – 3,980 fps | 24″ / Universal Receiver | Hodgdon |
| Nosler Varmageddon | 32 gr | Ramshot TAC | 26.0 gr | 28.5 gr (55,800 PSI) | 3,700 – 4,000 fps | 24″ / Universal Receiver | Western Powders |
| Hornady V-MAX | 40 gr | H4895 | 24.5 gr | 26.2 gr (57,300 PSI) | 3,480 – 3,690 fps | 24″ / Universal Receiver | Hodgdon |
| Sierra Hollow Point | 40 gr | IMR 8208 XBR | 24.0 gr | 25.8 gr (56,800 PSI) | 3,500 – 3,710 fps | 24″ / Universal Receiver | Hodgdon |
Understanding the .204 Ruger Reloading Data
Reading .204 Ruger reloading data requires paying close attention to minimum and maximum charge weights alongside their corresponding pressure limits. The tables above provide a baseline for safe load development using tested combinations of bullets and powders. Pay special attention to compressed loads, often denoted with a “C” (such as 27.5C gr), which indicate the powder will fill the case up to or past the base of the seated bullet.
.204 Ruger Bullet Weight Reloading Data
The .204 Ruger typically utilizes bullet weights ranging from 24 grains up to 45 grains, with 32-grain and 40-grain options being the most common. Lighter bullets are prioritized for maximum velocity and explosive expansion on small varmints. Heavier 40-grain and 45-grain bullets provide better ballistic coefficients, making them superior for longer-range shooting where wind drift becomes a significant factor.
.204 Ruger Powder Reloading Data
Powder selection for this cartridge generally revolves around fast to medium-burn-rate rifle powders. Extruded powders like H4895, Varget, and Benchmark are highly regarded for their temperature stability and consistent ignition. Spherical (ball) powders such as CFE 223, BL-C(2), and Ramshot TAC meter exceptionally well through standard powder measures, making them excellent choices for high-volume reloading.
.204 Ruger Bullet and Powder Combinations
Pairing the right bullet with the appropriate powder is critical for accuracy. Lighter 32-grain bullets often achieve peak performance with slightly faster-burning powders like H322 or Benchmark. Conversely, heavier 40-grain bullets often yield lower pressure spikes and better velocities when paired with slightly slower powders such as CFE 223 or Varget. Always verify combinations in a published manual rather than assuming a powder behaves uniformly across all bullet weights.
.204 Ruger Velocity From Published Data
Published velocity figures for the .204 Ruger are highly impressive, frequently breaking the 4,000 fps threshold with 32-grain projectiles. These extreme velocities create the incredibly flat trajectories the cartridge is famous for. Keep in mind that published velocities are typically achieved under controlled laboratory conditions, and environmental factors like temperature and elevation will affect your real-world chronograph readings.
.204 Ruger Reloading Data by Barrel Length
Most published load data for the .204 Ruger is derived using 24-inch or 26-inch test barrels to maximize powder burn and velocity. If you are shooting a rifle with a shorter barrel, such as an 18-inch or 20-inch model, you can expect a velocity loss of approximately 30 to 50 fps per inch of reduced barrel length. The powder charge should not be altered to compensate for this shorter barrel length; simply expect lower chronograph readings.
.204 Ruger Energy and Ballistics
Despite its small caliber and lightweight projectiles, the .204 Ruger delivers devastating kinetic energy upon impact due to its massive velocity. The ballistic profile features minimal bullet drop out to 300 yards, allowing for point-and-shoot accuracy on small targets. This high-speed energy transfer is what makes the cartridge so effective, as the projectile often fragments entirely upon hitting the target.
.204 Ruger Hunting Applications
The .204 Ruger is purpose-built for varmint and predator hunting. It is exceptionally popular for prairie dogs, groundhogs, coyotes, and bobcats because it delivers lethal performance with virtually no recoil. Because the lightweight bullets are designed to expand rapidly or fragment completely, the cartridge is generally considered too light for medium game like deer, and is restricted by hunting regulations in many jurisdictions to non-game or varmint species only.
Manufacturer Data vs. Independent Testing
Manufacturer data is gathered using universally calibrated pressure barrels in climate-controlled laboratories, making it the standard for safety. Independent testing found in forums or magazines can provide realistic expectations for standard off-the-shelf rifles but lacks scientific pressure-testing equipment. Always use manufacturer data as your primary source for safety limits and treat independent testing purely as supplemental reference material.
.204 Ruger Pressure and Safety
The .204 Ruger operates at high pressures, with the Sporting Arms and Ammunition Manufacturers’ Institute (SAAMI) establishing a Maximum Average Pressure (MAP) of 57,500 PSI. Because of these tight pressure parameters, small adjustments in powder charge or bullet seating depth can cause significant pressure spikes. Watch closely for traditional pressure signs on your brass, such as flattened primers, sticky bolt lift, or ejector marks, and always start at the published minimum load.
Best Sources for .204 Ruger Reloading Data
The most reliable sources for load data are the annual manuals and online databases provided by bullet and powder manufacturers. Companies like Hodgdon, Hornady, Nosler, and Sierra publish rigorously tested data that accounts for a wide variety of components. Utilizing the free online reloading centers hosted by these manufacturers guarantees you are accessing the most up-to-date and thoroughly vetted load recipes available.
Frequently Asked Questions
Where can I find .204 Ruger reloading data?
You can find reliable reloading data in printed manuals from companies like Hornady and Nosler, or on the official websites of powder distributors like Hodgdon.
What powders are listed in published .204 Ruger data?
Commonly listed powders include CFE 223, H4895, Varget, Benchmark, BL-C(2), and Ramshot TAC.
What bullet weights are covered in these tables?
These tables primarily cover the most popular .204 Ruger bullet weights, specifically 32-grain, 35-grain, 39-grain, and 40-grain projectiles.
Does barrel length affect .204 Ruger velocity?
Yes, shorter barrels will produce lower velocities, typically losing between 30 and 50 feet per second for every inch of barrel removed compared to the 24-inch standard.
Can I use standard rifle primers for .204 Ruger?
Standard small rifle primers are generally recommended, though small rifle magnum primers may be suggested by manufacturers when using certain spherical ball powders in cold weather.
What is the difference between .204 Ruger load data and reloading data?
There is no practical difference; both terms refer to the recipes of powder charges, bullet weights, and primers used to safely assemble a cartridge.
Why do published velocity figures differ between sources?
Velocity figures differ because manufacturers use different specific test barrels, environmental conditions, brass lots, and primer types during their distinct testing processes.
Should I use the maximum published load?
You should never start with the maximum published load; always begin with the starting charge and slowly work up while monitoring your brass for signs of overpressure.
Can I use data from one bullet manufacturer for another bullet?
You should only use data meant for the exact bullet you are loading, as differences in bullet bearing surface, jacket thickness, and profile can drastically alter chamber pressures.
Where should I verify .204 Ruger load data before reloading?
You should verify all data directly against an official, recently published manufacturer manual or a powder company’s official online reloading database.