Vihtavuori Pistol
Vihtavuori 3N37
A competition-oriented handgun powder Vihtavuori promotes for IPSC and USPSA practical shooting, including 9mm Major loads for Open division. It is also used as a submachine gun propellant.
Official Vihtavuori load data →
Specifications
| Manufacturer | Vihtavuori |
|---|---|
| Product family | Vihtavuori Pistol |
| Status | Currently produced |
| Application | pistol |
| Grain form | extruded |
| Composition | single-base |
| Burn-rate position | 52 of 198 (fastest = 1) — what this means |
| Typical cartridges | 9mm Luger, 357 Magnum, 40 S&W, 10mm Auto, 45 ACP |
Very small, porous, near-cubic tubular grains that meter smoothly. Vihtavuori notes Sako used this powder type for 9mm submachine gun ammunition in the mid-twentieth century.
Burn rate
Medium handgun burn rate, very close to N350.
Chart agreement: consistent across charts - listed in the same relative neighbourhood by every publisher that carries it 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:
- Hodgdon CFE Pistol (position 49)
- Ramshot True Blue (position 50)
- Ramshot Silhouette (position 51)
- Vihtavuori N350 (position 53)
- Vihtavuori 3N38 (position 54)
- Winchester 572 (position 55)
Sources
Other Vihtavuori powders
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.