Vihtavuori N500 High Energy
Vihtavuori N555
A newer high-energy powder designed around the 6.5 Creedmoor and similar large-case, small-bore cartridges, for competition and hunting where accuracy and shot-to-shot consistency matter.
Official Vihtavuori load data →
Specifications
| Manufacturer | Vihtavuori |
|---|---|
| Product family | Vihtavuori N500 High Energy |
| Status | Currently produced |
| Application | rifle |
| Grain form | extruded |
| Composition | double-base |
| Temperature stable | Yes — claimed by the manufacturer |
| Burn-rate position | 164 of 198 (fastest = 1) — what this means |
| Typical cartridges | 6.5 Creedmoor, 6mm Creedmoor, 260 Remington, 284 Winchester, 30-06 Springfield |
Vihtavuori states N555 contains an anti-fouling agent that minimises barrel fouling, calls it the most temperature stable reloading powder in its class and insensitive in extreme weather, and advertises lot-to-lot consistency.
Burn rate
Vihtavuori places its burn rate between N550 and N160.
Chart agreement: consistent across the three charts that list it Ranked by: Hodgdon, Vihtavuori, Wolfe/LoadData.
Powders charted near it — neighbours on the chart are not substitutes, and adjacency tells you nothing about what charge either one takes:
- Ramshot Hunter (position 161)
- Vihtavuori N160 (position 162)
- Hodgdon H4831 (position 166)
- Hodgdon H4831SC (position 166)
- Vihtavuori N560 (position 167)
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.