Vihtavuori 24N41 Smokeless Gun Powder: Extreme-Range Magnum Powder for .50 BMG

Vihtavuori 24N41 is a true .50 BMG powder — a specialty extreme-range rifle powder built for large-capacity magnum cartridges and heavy bullets where long-range target shooters need a slow, consistent burn.

Built for Extreme-Range Magnum Performance

24N41 uses a large single-base, surface-treated grain measuring 2.3mm long and 1.3mm in diameter — the same grain geometry as its sibling Vihtavuori 20N29. On Vihtavuori’s own burn-rate chart, 24N41 is one of the slowest powders Vihtavuori makes, sitting just ahead of 20N29 (relative burn-rate index 39 vs. 36, with N110 set at 100). Vihtavuori’s production process controls the full chain from nitrocellulose manufacture to final bottling, giving the lot-to-lot consistency long-range reloaders need for repeatable results, along with the clean-burning, decoppering performance built into Vihtavuori’s full powder lineup.

Application Versatility

24N41 was developed as a true .50 BMG powder and is ideally suited to that cartridge. It’s also suitable for other very large-capacity magnum cases such as .300 Lapua Magnum, .300 Remington Ultra Magnum, and .338 Lapua Magnum, where a slow, sustained burn and conservative pressure curve are preferred. If you need a slightly slower-burning option in the same specialty family, Vihtavuori 20N29 is worth comparing.

Load Development

Always use published, manufacturer-tested load data when developing loads with 24N41. Start at the published minimum charge and work up in small increments, weigh every charge on a calibrated scale, and chronograph each string to track velocity consistency. Keep primer brand, bullet lot, and brass lot constant during development, watch for pressure signs, and document charge weight, seating depth, primer, and chronograph results so successful loads can be reproduced.

Quick Specs

• Type: Single-base surface-treated rifle powder, specialty extreme-range/magnum family, very slow burn rate (slightly faster than 20N29), 2.3mm x 1.3mm grain
• Manufacturer: Vihtavuori (Finland)
• Best for: .50 BMG, and suitable for other large-capacity magnums including .300 Lapua Magnum, .300 RUM, and .338 Lapua Magnum
• Container sizes: 1 Lb, 8 Lb

Safety Reminders

Before loading, review a few important guidelines. Never exceed the loads displayed in your reloading guide. Never mix two powders together, regardless of type, brand, or source. Never substitute smokeless powder for Black Powder or any Black Powder substitute. Store 24N41 in its original, sealed container in a cool, dry, well-ventilated place away from sunlight and heat sources.

Vihtavuori 24N41 For Sale, In Stock

USReloadingPowder keeps Vihtavuori 24N41 Smokeless Gun Powder in stock for long-range shooters and .50 BMG reloaders who need a proven extreme-range magnum powder. Browse the rest of our lineup on the Vihtavuori Powders category page.

FAQs

What cartridges is 24N41 best for? It’s a true .50 BMG powder, ideally suited to that cartridge, and is also suitable for other large-capacity magnums including .300 Lapua Magnum, .300 RUM, and .338 Lapua Magnum.

How does 24N41 compare to 20N29? Both share the same 2.3mm x 1.3mm grain and are built for .50 BMG and similar large magnum cartridges; 24N41 burns slightly faster than 20N29 on Vihtavuori’s own burn-rate index.

Is 24N41 part of the N100 or N500 series? No — it’s grouped with 20N29 as one of Vihtavuori’s dedicated extreme-range magnum powders, outside the standard N100/N500 lineup.

How should I store it long-term? Keep it sealed in its original container, stored in a cool, dry, ventilated location away from heat and sunlight. Proper storage keeps powder stable for years.