Powder head-to-head
H322 vs Vihtavuori N133
Both powders on one page: burn-rate position, temperature sensitivity and the 8 cartridges they share, with the substitution note from the reference.
Burn-rate position
FastestSlowest
Substitution
Similar burn rate in small varmint cases. Standard workup required.
Confidence: Community. Always start at published minimums and work up.
Side by side
| H322 | Vihtavuori N133 | |
|---|---|---|
| Manufacturer | Hodgdon | Vihtavuori |
| Burn-rate rank | #52 | #53 |
| Burn category | Medium | Rifle Fast |
| Grain shape | Extruded | Extruded |
| Temperature sensitivity | Low | Low |
| Applications | Rifle | Rifle |
| Suppressor-friendly | Yes | Yes |
| US availability | Common | Moderate |
| Status | Active | Active |
Shared cartridges
FAQs
- Can I substitute H322 for Vihtavuori N133?
- Similar burn rate in small varmint cases. Standard workup required. Confidence: Community. Always start at published minimum charges and work up.
- Which burns faster, H322 or Vihtavuori N133?
- H322 is the faster-burning of the two (rank #52 vs #53 — lower rank burns faster).
- What cartridges do H322 and Vihtavuori N133 both load?
- Both powders are listed for 6.5 Grendel, .223 Remington, .222 Remington, .204 Ruger, 6mm BR Norma, .22 PPC, among 8 shared cartridges.