Nammo · Extruded
Vihtavuori N133
Benchmark Vihtavuori powder for .223 Rem and benchrest cartridges.
- Manufacturer
- Vihtavuori
- Grain shape
- Extruded
- Burn rank
- #53
- Category
- Rifle Fast
- Temp sensitivity
- Low
- Application
- Rifle
- Origin
- Finland
- Status
- Active
Burn-rate position
Typical cartridges
.204 Ruger, .22 Nosler, .22 PPC, .22-250 Remington, .221 Remington Fireball, .222 Remington, .223 Remington, .224 Valkyrie, .30-06 Springfield, .30-30 Winchester, .300 Savage, .303 British, .308 Winchester, .45-70 Government, .458 Winchester Magnum, 6.5 Grendel, 6.5x47mm Lapua, 6mm ARC, 6mm BR Norma, 6mm PPC, 7.62x53mm Finnish, 7.92x57mm Mauser, 7mm TCU, 9.3x62mm Mauser
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
Similar burn rate in small varmint cases. Standard workup required.
By cartridge
Similar burn rate
Supply & handling
- Availability (US)
- Moderate
- Shortage-prone
- No
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
N133 is the benchrest cartridge's powder — specifically engineered around 6PPC and .223 Rem International BR accuracy. When half-minute or better groups are required in competition, N133 is the most commonly used powder in these small cases worldwide. Outstanding lot-to-lot consistency is its hallmark.