
Description
Vihtavuori N170 is a slow-burning rifle powder tailored for large, magnum calibers, offering excellent performance in reloading applications that require a gradual burn rate. Its physical characteristics manifest as a dense, extruded tubular form, ensuring consistent metering during the reloading process, allowing for precise charge weights. N170 exhibits exceptional temperature stability, making it a reliable choice for handloaders who operate in diverse climatic conditions, as it maintains consistent velocities and pressures across different environments. This powder is particularly well-suited for popular magnum rifle calibers such as the .338 Lapua Magnum, .300 Winchester Magnum, and .30-378 Weatherby Magnum, where its slow burn rate maximizes bullet propulsion and efficiency in large case capacities. Load development with N170 requires careful attention to achieving optimal case fill and pressure standards to harness its full potential. Handloaders value Vihtavuori's reputation for producing high-quality, consistent powders, making N170 a dependable choice for those seeking accuracy and performance in magnum rifle loads.
Specifications
Burn Rate
0.8 (Slow)
Bulk Density
0.960 g/cm³
Density
1.590 g/cm³
Temperature Sensitivity
Low
Suitable Substitutes
Powders with a similar burn rate that may be suitable alternatives (also see burn rate chart):
Standard Loads — Vihtavuori N170
Verified load data combinations using Vihtavuori N170.
.244 H&H Mag.
Berger .243 | 105gr | Berger BT 105gr
.244 H&H Mag.
Brenneke .243 | 96gr | Brenneke TOG 96gr
.244 H&H Mag.
DTAC .243 | 115gr | DTAC RBT Closed Nose - Boron Nitride 115gr
.244 H&H Mag.
Geco .243 | 105gr | Geco SOFTPOINT 105gr
.244 H&H Mag.
Hornady .243 | 108gr | Hornady ELD Match 108gr
.244 H&H Mag.
Lapua .243 | 77gr | Lapua Open Tip 105gr
.244 H&H Mag.
MEN .243 | 100gr | MEN SP 100gr
.244 H&H Mag.
MEN .243 | 100gr | MEN FMJ 100gr
.244 H&H Mag.
Nosler .243 | 95gr | Nosler Ballistic Tip Hunting 95gr
.244 H&H Mag.
Sellier & Bellot .243 | 100gr | Sellier & Bellot SP 100gr
.244 H&H Mag.
Sierra .243 | 100gr | Sierra Pro-Hunter 100gr
.26 Nosler
Barnes .264 | 130gr | Barnes Solid BT 130gr
.26 Nosler
Barnes .264 | 140gr | Barnes XLC S 140gr
.26 Nosler
Berger .264 | 140gr | Berger BT Target 140gr
.26 Nosler
Cutting Edge .264 | 130gr | CutEdge MTH 130gr
.26 Nosler
Cutting Edge .264 | 155gr | CutEdge DGSC 155gr
.26 Nosler
Ferrobull Europe .264 | 140gr | Ferrobull Tripple Expand Jagd 140gr
.26 Nosler
Fox Bullets .264 | 139gr | Fox Classic Hunter 139gr
Community Loads — Vihtavuori N170
Sample load data calculated with Vihtavuori N170.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .284 | 160gr | Sierra Tipped MatchKing | 26.0 | ••.• | 3.52 | 97.0 | 61,686 (95%) | 3094 | |
| .284 | 160gr | Sierra Tipped MatchKing | 26.0 | 82.0 | 3.52 | 97.0 | 54,843 (84%) | 2986 | |
| .284 | 160gr | Sierra Tipped MatchKing | 26.0 | 82.0 | 3.56 | 97.0 | 54,072 (83%) | 2972 | |
| .284 | 160gr | Sierra Tipped MatchKing | 26.0 | 75.0 | 3.52 | 97.0 | 41,772 (64%) | 2733 | |
| .308 | 220gr | Lapua ScenarL | 27.0 | ••.• | 3.40 | 104.0 | 55,390 (87%) | 2795 | |
| .308 | 220gr | Lapua ScenarL | 27.0 | ••.• | 3.40 | 104.0 | 47,761 (75%) | 2667 | |
| .308 | 220gr | Nosler Custom Competition | 27.5 | ••.• | 3.70 | 99.0 | 62,352 (96%) | 2890 | |
| .308 | 220gr | Nosler Custom Competition | 27.5 | ••.• | 3.70 | 99.0 | 60,017 (92%) | 2858 | |
| .308 | 220gr | Nosler Custom Competition | 27.5 | ••.• | 3.70 | 99.0 | 57,812 (89%) | 2825 | |
| .308 | 220gr | Nosler Custom Competition | 27.5 | ••.• | 3.70 | 99.0 | 55,637 (86%) | 2795 | |
| .308 | 220gr | Nosler Custom Competition | 27.5 | ••.• | 3.70 | 99.0 | 46,079 (71%) | 2635 | |
| .308 | 220gr | Nosler Custom Competition | 27.5 | ••.• | 3.70 | 99.0 | 42,728 (66%) | 2572 | |
| .338 | 300gr | Hornady A-TIP | 27.0 | ••.• | 3.68 | 114.0 | 61,521 (101%) | 2625 | |
| .338 | 285gr | Hornady ELD-Match | 27.0 | ••.• | 3.71 | 114.0 | 55,796 (92%) | 2621 | |
| .338 | 300gr | Hornady A-TIP | 27.0 | ••.• | 3.76 | 114.0 | 57,946 (95%) | 2589 | |
| .338 | 300gr | Hornady A-TIP | 27.0 | ••.• | 3.68 | 114.0 | 58,208 (96%) | 2582 | |
| .277 | 165gr | Nosler AccuBond Long Range | 20.0 | ••.• | 2.96 | 76.3 | 53,621 (82%) | 2612 |
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