Nammo · Ball
N550
Competition ball powder from VV's N500 series at the H4350 burn rate.
- Manufacturer
- Vihtavuori
- Grain shape
- Ball
- Burn rank
- #57
- Category
- Medium
- Temp sensitivity
- Low
- Application
- Rifle
- Origin
- Finland
- Status
- Active
Burn-rate position
Typical cartridges
.22 Creedmoor, .22 Nosler, .22-250 Remington, .223 Remington, .223 WSSM, .224 Valkyrie, .240 Weatherby Magnum, .243 Winchester, .243 WSSM, .260 Remington, .270 Weatherby Magnum, .270 Winchester, .280 Remington, .284 Winchester, .30-06 Springfield, .300 H&H Magnum, .300 PRC, .300 Winchester Magnum, .300 WSM, .308 Winchester, .338 Winchester Magnum, .375 H&H Magnum, 6.5 Creedmoor, 6.5 PRC
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
Similar burn rate zone; reduce 3–4% when substituting.
By cartridge
Similar burn rate
Supply & handling
- Availability (US)
- Moderate
- Shortage-prone
- No
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
N550 is Vihtavuori's entry into the slow magnum rifle powder category, optimized for .338 Lapua and similar large magnum precision cartridges. Long-range competition shooters using heavy-for-caliber bullets in the .338 Lapua find N550 produces excellent velocity and consistency.