Lindcott Armory Nammo · Extruded
N170
Ultra-slow Vihtavuori powder for the largest rifle cartridges.
- Manufacturer
- Vihtavuori
- Grain shape
- Extruded
- Burn rank
- #78
- Category
- Medium-Slow
- Temp sensitivity
- Low
- Application
- Rifle
- Origin
- Finland
- Status
- Active
Burn-rate position
FastestSlowest
Typical cartridges
.338 Lapua Magnum.300 Norma Magnum.375 H&H Magnum.416 Rigby.270 Weatherby Magnum8x68mm S.257 Weatherby Magnum.340 Weatherby Magnum.460 Weatherby Magnum.308 Norma Magnum8mm Remington Magnum.375 Ruger.404 Jeffery.35 Newton.300 PRC.416 Remington Magnum.338 Remington Ultra Magnum.378 Weatherby Magnum7mm PRC.338 Norma Magnum7mm Remington Ultra Magnum7mm Backcountry6.5-300 Weatherby Magnum.30 Nosler
Substitutes
Listed substitutions with charge guidance. Always start at published minimums and work up.
By cartridge
.338 Lapua Magnumalso used: MRP2, S365, AR 2217
.300 Norma Magnumalso used: AR 2217, Reloader 25, Reloader 26
.375 H&H Magnumalso used: Norma MRP, MRP2, Tubal 7000
.416 Rigbyalso used: Reloader 25, LRT, IMR 8133
.270 Weatherby Magnumalso used: Reloader 25
8x68mm Salso used: Reloader 25
.257 Weatherby Magnumalso used: Reloader 25
.340 Weatherby Magnumalso used: Reloader 25, Reloader 26
.460 Weatherby Magnumalso used: Reloader 25, IMR 5010, H870
.308 Norma Magnumsee the finder for alternatives
8mm Remington Magnumalso used: Reloader 25
.375 Rugeralso used: Reloader 19
Similar burn rate
Supply & handling
- Availability (US)
- Moderate
- Shortage-prone
- No
- Suppressor-friendly
- Yes
- Flash-suppressed
- No
About this powder
N170 is Vihtavuori's slowest standard extruded powder, designed for the .338 Lapua, .375 H&H, and similar large-capacity cartridges where case fill approaching 100% is required for optimal performance. Valued by long-range hunters and extreme long-range competitors.