Maxam CSB 2
The CSB 2 powder is also optimal for reloading metallic ammunition and is characterized by its regularity and precision.
Burn rate: 7.2Handgun calibers
Maxam Load Data
MAXAM is recognized globally for producing some of the finest smokeless propellants on the market—supported by nearly 150 years of experience in energetic materials. This legacy of excellence is built on rigorous quality control and a deep commitment to consistency, performance, and safety.
The superior quality of MAXAM powders stems from strict control of burn characteristics, ensuring each formulation delivers the expected velocity and pressure across a wide range of firearm applications. At the core of the process is highly stabilized nitrocellulose, which is gelled, extruded, and precisely treated to achieve optimal porosity. Final steps include drying and specialized surface treatments to guarantee the fluidity required for accurate, repeatable dosing.
All MAXAM powders are tested in manometric guns under the standards of the Permanent International Commission (C.I.P.), ensuring compliance with the highest safety and performance benchmarks for portable firearms. Through comprehensive supervision and precise manufacturing of grain size and porosity, MAXAM powders deliver stable pressure curves, efficient combustion, and minimal residue inside the barrel.
The result is a propellant range trusted by reloaders, hunters, and shooting professionals worldwide for its reliability, clean performance, and exceptional ballistic consistency.
We have load data for the following Maxam powders:
Maxam CSB 1
The CSB 1 powder is also optimal for reloading metallic ammunition and is characterized by its regularity and precision.
Burn rate: 7.8Handgun calibers
Maxam CSB 3
The CSB 3 powder is also optimal for reloading metallic ammunition and is characterized by its regularity and precision.
Burn rate: 8.2Handgun calibers
Maxam CSB 4
The CSB 5 powder is also optimal for reloading metallic ammunition and is characterized by its regularity and precision.
Burn rate: 8.6Handgun calibers
Maxam CSB 5
The CSB 5 powder is also optimal for reloading metallic ammunition and is characterized by its regularity and precision.
Burn rate: 9Handgun calibers
Burn rate is a relative scale: lower values burn slower, higher values burn faster.
Sample Maxam load data
A cross-section of calculated Maxam loads from our database, covering different calibers and bullets. Open a powder or caliber to see the full load tables.
Last updated: August 20, 2026
| Caliber | Bullet | Powder | Charge (gr) | Max. pressure (psi) | Muzzle velocity (fps) |
|---|---|---|---|---|---|
| 9 mm Para | .356 | 115gr | Berry's Round Nose | Maxam CSB 1 | 5.4 | 33,765 | 1,191 |
| .357 Mag. | .358 | 158gr | LEE Mold 358-158-RF | Maxam CSB 1 | 8.2 | 41,800 | 1,273 |
| 5.7 x 28 | .224 | 40gr | Hornady V-MAX | Maxam CSB 2 | 4.9 | 49,255 | 1,765 |
| .45 ACP | .451 | 200gr | Hornady XTP | Maxam CSB 1 | 6.4 | 18,724 | 978 |
| .40 S&W | .400 | 165gr | X-TREME RNFP | Maxam CSB 3 | 5.8 | 30,516 | 1,066 |
| .32 ACP (7.65 Browning) | .309 | 71gr | H&N RN HS | Maxam CSB 1 | Available with access license | 21,712 | 1,106 |
| .41 Rem. Mag. | .410 | 210gr | LEE Mold 410-210-SWC | Maxam CSB 1 | Available with access license | 40,654 | 1,289 |
| .22 TCM | .224 | 40gr | Speer Varmint Soft Point | Maxam CSB 2 | Available with access license | 35,012 | 1,654 |
| .460 S&W Mag. | .452 | 240gr | Hornady XTP MAG | Maxam CSB 5 | Available with access license | 59,770 | 1,657 |
| .44 Rem. Mag. | .429 | 240gr | LEE Mold 429-240-2R | Maxam CSB 1 | Available with access license | 37,347 | 1,217 |
Personalized Load Calculator
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Popular load data
Looking for a specific cartridge? Browse the most requested calibers loaded with these powders:
- .357 Mag. 980 loads
- 9 mm Para 830 loads
- .38 Special 739 loads
- 5.7 x 28 670 loads
- 7 x 49 GJW 640 loads
- .45 ACP 615 loads
- .357 Maximum 555 loads
- 9 mm FAR 530 loads
- 9 mm Mauser 480 loads
- 9 x 25 Dillon 430 loads
- .38-45 ACP 425 loads
- 9 x 21 325 loads
- All calibers with load data
Frequently asked questions about Maxam powders
This page lists 5 Maxam powders with load data: Maxam CSB 2, Maxam CSB 1, Maxam CSB 3, Maxam CSB 4, Maxam CSB 5.
Maxam CSB 2 has the slowest burn rate at 7.2, and Maxam CSB 5 the fastest at 9. Lower values burn slower.
We hold load data using Maxam powders for 70 calibers. The most common ones are .357 Mag., 9 mm Para, .38 Special, 5.7 x 28, 7 x 49 GJW, .45 ACP, .357 Maximum, 9 mm FAR.
None of the Maxam powders in our data is currently flagged for subsonic loads.
Currently 15,037 load records using Maxam powders, spread across 70 calibers.
The values are calculated with an inner-ballistics engine across the full charge range and cross-checked against Maxam product data. They are reference data for experienced handloaders: always start at the minimum charge, work up carefully and cross-check against current published data before firing.