
Maxam Load Data & Reloading Guide
Maxam, a global leader in the explosive and ammunition industry, boasts a rich history dating back over a century, with roots established in Spain. Known for their innovative approach and commitment to quality, Maxam provides a wide range of products tailored for ammunition reloaders. Their offerings include high-performance powders, bullets, primers, and other essential reloading components, designed to meet the rigorous demands of handloading enthusiasts. The company’s meticulous attention to detail ensures consistent performance across product lines, which is essential for developing precise loads.
About Maxam
Maxam's commitment to quality is demonstrated through their adherence to stringent standards and rigorous testing protocols. This ensures that their reloading components provide reliable and consistent results, a critical factor for reloaders seeking optimal performance. The company offers detailed reloading data and guidance, which serves as an invaluable resource for load development. This data helps reloaders achieve desired results whether the goal is accuracy, velocity, or a balance of both.
Within the global handloading community, Maxam holds a solid reputation for producing reliable and versatile components. Their products are well-regarded for maintaining consistency in various environmental conditions, allowing reloaders to experiment and fine-tune their loads with confidence. Maxam's continuous innovation and commitment to quality make them a trusted choice for those dedicated to the art and science of handloading.
Develop your own Maxam Load Recipes
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Maxam CSB 1
CSB 1 by Maxam is a versatile propellant powder favored for pistol applications, offering a burn rate around 8.3, considered fast within handgun reloading contexts. It is ideally suited for a variety of handgun calibers, including popular choices like 9mm Luger, .38 Special, and .45 ACP, making it a staple in many reloaders' inventories. The powder's physical form ensures consistent metering, promoting uniform charge weights and aiding precision in load preparation. A standout feature of CSB 1 is its commendable temperature stability, facilitating reliable ballistic performance across a range of environmental conditions. This stability is particularly beneficial for handloaders seeking consistency in diverse climates. When developing loads, users should carefully adhere to manufacturer guidelines to optimize safety and performance. Maxam's reputation for quality and innovation in the propellant space is well-regarded within the handloading community, providing confidence in the product's reliability and effectiveness for both recreational shooting and competitive settings.

Maxam CSB 2
Maxam's CSB 2 propellant powder boasts a medium-fast burn rate of 8.7, making it an exemplary choice for reloading a wide range of pistol calibers. It is specifically tailored for handgun applications, offering versatile performance across various bullet weights and configurations. The powder exhibits a spherical grain form that ensures smooth metering through standard reloading equipment, facilitating consistent charge weights for precise handloads. CSB 2 demonstrates excellent temperature stability, maintaining consistent pressures and velocities under varied environmental conditions, which is a critical factor for accuracy-focused reloaders. This powder is particularly compatible with popular calibers such as 9mm Luger, .40 S&W, and .45 ACP, offering a reliable and efficient option for both target shooting and practical applications. During load development, CSB 2 provides a forgiving pressure curve, allowing for incremental adjustments to achieve optimal ballistic performance. Its reputable manufacturing by Maxam delivers quality assurance and reliability, appealing to handloaders seeking performance consistency and dependability in their reloads.

Maxam CSB 3
Maxam CSB 3 is a propellant powder that exhibits a medium burn rate with a burn rate value of 8.8, making it ideally suited for handgun and pistol loads. Its primary applications are found within the field of pistol cartridges, efficiently powering calibers such as 9mm Luger, .45 ACP, and .38 Special. The physical form of CSB 3 is a consistent, fine-grained powder, which ensures excellent metering properties and ease of use, especially in progressive reloading presses. Temperature stability is a noteworthy characteristic of CSB 3, maintaining reliable performance across a wide range of environmental conditions, an advantage for those whose shooting activities span different climates. In load development, it offers flexibility and consistency, crucial for developing repeatable, accurate loads. Reloaders appreciate this powder for its low residue production, leaving firearm barrels significantly cleaner compared to some other propellants. Maxam's reputation for quality and innovation is well-regarded within the handloading community, making CSB 3 a trusted choice for those seeking dependable performance for their handgun reloading needs.

Maxam CSB 4
CSB 4 by Maxam is a versatile powder with a fast burn rate, ideal for handgun and pistol loads. It is particularly well-suited for rapid cycling semi-automatic pistols and revolvers. The powder's consistent spherical granules ensure excellent metering through most powder measures, contributing to uniform charge weights and predictable performance, which is critical for precision handloading. CSB 4 exhibits low temperature sensitivity, maintaining consistent velocities across a wide range of environmental conditions, a valuable feature for shooters encountering variable climates. It is commonly used in popular calibers such as 9mm Luger, .40 S&W, and .45 ACP, where its clean-burning characteristics enhance performance and ease barrel maintenance. When developing loads, handloaders should start on the lower end of published data given its fast burn rate, and incrementally adjust to desired performance levels. Maxam, known for stringent quality controls, ensures each batch of CSB 4 meets high standards, bolstering its reputation for reliability among the handloading community.

Maxam CSB 5
CSB 5 by Maxam offers a medium-fast burn rate with a rating of 9.4, specifically catering to handgun and pistol reloaders. It introduces excellent versatility across various calibers, making it suitable for medium-load applications typically associated with 9mm Luger, .40 S&W, and .45 ACP. As a spherical propellant, CSB 5 excels in metering precision, providing consistent powder charge weights that are crucial for handgun applications. In terms of temperature stability, this powder maintains reliable performance across a broad range of ambient conditions, minimizing velocity fluctuations caused by temperature changes. This characteristic is particularly beneficial for competitive shooters and those seeking consistent accuracy. Moreover, CSB 5's manageable burn rate supports efficient propellant-to-bullet energy transfer, optimizing velocity without excessive pressure. Load developers should take note of its clean-tuning combustion, which reduces residue build-up and simplifies firearm maintenance. Recognized for its reliable performance and consistent lot-to-lot quality, Maxam’s CSB 5 is a valuable addition to any experienced reloader’s inventory.
Standard Load Data — Maxam
Select your desired cartridge and bullet weight below to access the corresponding load table. From there, you can choose any listed load recipe and transfer it directly into the ballistics calculator for further refinement, optimization, and precision tuning.
.356 | 120gr | LEE Mold 356-120-TC
9 mm Para
.312 | 71gr | Berry's Round Nose
.32 S&W Long N.P.
.357 | 110gr | Hornady XTP
.38 Special
.224 | 35gr | Nosler Varmageddon
5.7 x 28
.311 | 86gr | H&N RN HS
7.62 x 25 Tokarev
.356 | 125gr | SNS Coated Bullets RN
9 mm Steyr
.356 | 125gr | H&N KS HS LG
9 mm Para
.357 | 158gr | Frontier Bullets FP
.38 Special
.356 | 100gr | Berry's Flat Base Round Nose
.380 ACP
.311 | 86gr | H&N RN HS
7.63 Mauser
.357 | 110gr | Barnes TAC-XP
.38 Special
.356 | 115gr | Berry's HBRN-TP
.38 Special
.429 | 240gr | LOS RNFP
.44 S&W Russian
.355 | 115gr | Sierra Sports Master
9 mm Para
.355 | 125gr | Speer Hollow Point Gold Dot
9 mm Para
.357 | 140gr | Sierra Sports Master
9 mm Para
.355 | 100gr | Speer JHP
.38 Super Auto
.452 | 118gr | Inceptor ARX Prefered Defense
.45 Win. Mag.
.410 | 195gr | LEE Mold 410-195-SWC
.41 Rem. Mag.
.400 | 165gr | Sierra Sig V-Crown
10 mm Auto (SAAMI)
.400 | 155gr | X-TREME RNFP
10 mm Auto (SAAMI)
.451 | 300gr | Speer Spitzer Soft Point
.45 Win. Mag.
.452 | 200gr | LEE Mold 452-200-RF
.45 Win. Mag.
.313 | 100gr | H&N WC KB Match
.327 Federal Mag.
Community Loads — Maxam
Sample load data using Maxam bullets or powders from our database.
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Frequently Asked Questions
We offer load data for 5 Maxam powders, including Maxam CSB 1, Maxam CSB 2, Maxam CSB 3, Maxam CSB 4, Maxam CSB 5.