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Vihtavuori N100 Rifle

Vihtavuori 20N29

Developed for .50 BMG and military use, and applied to other very large capacity magnums with heavy bullets in long-range target shooting.

Official Vihtavuori load data →

Specifications

ManufacturerVihtavuori
Product familyVihtavuori N100 Rifle
StatusCurrently produced
Applicationrifle
Grain formextruded
Compositionsingle-base
Burn-rate position198 of 198 (fastest = 1) what this means
Typical cartridges50 BMG, 30-378 Weatherby Magnum, 375 CheyTac, 338 Lapua Magnum

Single-base and surface treated, with very large extruded grains the same nominal size as 24N41. The designation follows Finnish Army naming. Vihtavuori groups it with the N100 series.

Burn rate

The slowest powder Vihtavuori catalogues; it sits at the very bottom of their burn rate chart, below 24N41.

Chart agreement: consistent - ranked as the slowest powder on the chart by Hodgdon, Vihtavuori and Wolfe/LoadData alike. Ranked by: Hodgdon, Vihtavuori, Shooters World, Wolfe/LoadData.

Powders charted near it — neighbours on the chart are not substitutes, and adjacency tells you nothing about what charge either one takes:

Sources

Other Vihtavuori powders

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Verify the charge, not just the recipe

Good data gets you a safe starting point. It does not tell you what actually went into the case on stroke 340 — a bridged measure, a double charge, a squib. That is what an RCM Laser Powder Check is for.