Best Powders for the 25 Weatherby RPM Cartridge
Slow powders aren't optional for the 25 Weatherby RPM - they're essential.
Powder
Winchester 572
In the precision-driven world of modern handloading, few propellants have managed to bridge the gap between legacy performance and contemporary chemical standards as effectively as Winchester 572. Introduced to satisfy the demands of both high-volume shotshell enthusiasts and handgun target…
Ramshot True Blue
Ramshot True Blue has earned its reputation as the most versatile handgun propellant in the modern reloader’s arsenal. As a high-density, double-base spherical powder, Ramshot True Blue bridges the gap between fast-burning target powders and slow-burning magnum propellants. It is…
Alliant Herco
Alliant Herco: a double-base, large-flake powder ideal for heavy 12-gauge loads and full-power handgun reloading (45 ACP, .357 Magnum); pros, limits, and setup.
Vihtavuori N350
Vihtavuori N350 is the slowest-burning propellant in the acclaimed N300 series of handgun powders produced by the Finnish manufacturer Vihtavuori. Engineered specifically for high-performance and high-pressure handgun applications, Vihtavuori N350 has earned a legendary reputation among competitive shooters, tactical professionals,…
Hodgdon Longshot
Hodgdon Longshot: a high-velocity, double-base powder ideal for heavy shotshells and high-pressure handgun reloads—performance guide for serious reloaders.
Hodgdon Universal
Hodgdon Universal stands as one of the most significant achievements in the history of the Clays family of propellants, representing a technical bridge between specialized target powders and high-performance field propellants. Known for its incredible versatility, Hodgdon Universal was originally…
Alliant Blue Dot
Alliant Blue Dot is a legendary, high-performance propellant that has served as a cornerstone for magnum handgun reloaders and heavy shotshell enthusiasts for more than half a century. Originally developed by Hercules Powder Company and now manufactured under the Alliant…
Winchester Super Handicap
In the highly competitive arena of trap shooting and the precision-driven world of handgun reloading, certain propellants earn a reputation for specialized excellence. Winchester Super Handicap is a premier example of a powder designed with a singular, high-performance objective that…
Ramshot Zip
Ramshot Zip has established itself as a premier choice for handgun reloaders who demand versatility, cleanliness, and exceptional metering consistency. As a high-density, double-base spherical propellant, Ramshot Zip is specifically engineered for a wide range of semi-auto pistols and revolvers.…
Winchester AUTOCOMP
In the world of competitive action shooting, particularly within the USPSA and IPSC circuits, the search for the perfect propellant often leads to Winchester AutoComp. This specialized powder was engineered with a very specific goal in mind: to provide the…
Ramshot Enforcer
In the specialized world of magnum handgun hunting and high-performance small-bore rifle loading, Ramshot Enforcer has established itself as an indispensable tool for the precision-minded reloader. Originally developed to meet the demanding requirements of high-pressure, large-volume handgun cartridges, this powder…
Ramshot Silhouette
The world of high-performance handgun reloading often demands a delicate balance between high velocity, manageable pressures, and visual signature. Ramshot Silhouette stands as a premier solution for handloaders seeking to maximize the potential of modern, high-pressure semi-auto cartridges. Originally known…
Winchester WST
Winchester WST: a fast-burning, ultra-clean target powder prized for consistent metering and soft recoil in 12-gauge trap/skeet and 45 ACP precision loads.
Winchester Super Field
Published: 2026 | Last updated: April 2026 Winchester Super Field (WSF) is a medium-burn-rate, double-base flattened spherical powder that bridges the gap between fast target powders and the slower propellants suited to magnum revolver cartridges. It was developed originally for…