Description
Vihtavuori N555 is a versatile rifle powder characterized by its medium burn rate, making it an excellent choice for a wide range of rifle cartridges. Known among handloaders for its consistency and precision, N555 is particularly well-suited for calibers such as 6.5 Creedmoor, 260 Remington, and 308 Winchester. The powder exhibits outstanding metering properties, thanks to its fine granule form, facilitating smooth and accurate dispensing through most powder measures. N555 maintains exceptional temperature stability, which is critical for reloaders seeking consistent performance across varying environmental conditions, from cold winter mornings to hot summer afternoons. During load development, handloaders will appreciate the powder's adaptability and reliable pressure curve, allowing for fine-tuning and optimization of loads without erratic spikes. Vihtavuori's esteemed reputation in the handloading community assures users of N555's quality and reliability, resulting in improved accuracy and performance for both competitive shooting and hunting applications.
Specifications
Burn Rate
2.4 (Medium-Slow)
Bulk Density
0.902 g/cm³
Density
1.620 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 N555
Verified load data combinations using Vihtavuori N555.
.22 Creedmoor
A-Square .224 | 72gr | A-Square e 72gr
.22 Creedmoor
Barnes .224 | 53gr | Barnes XLC S 53gr
.22 Creedmoor
Barnes .224 | 53gr | Barnes X S 53gr
.22 Creedmoor
Barnes .224 | 62gr | Barnes TSX BT 62gr
.22 Creedmoor
Barnes .224 | 62gr | Barnes TAC-X 62gr
.22 Creedmoor
Barnes .224 | 62gr | Barnes TTSX BT 62gr
.22 Creedmoor
Barnes .224 | 65gr | Barnes LRX BT 65gr
.22 Creedmoor
Barnes .224 | 69gr | Barnes Match Burner BT 69gr
.22 Creedmoor
Barnes .224 | 70gr | Barnes TSX BT 70gr
.22 Creedmoor
Barnes .224 | 70gr | Barnes TAC-X 70gr
.22 Creedmoor
Barnes .224 | 77gr | Barnes Match Burner BT 77gr
.22 Creedmoor
Barnes .224 | 77gr | Barnes LRX BT 77gr
.22 Creedmoor
Barnes .224 | 78gr | Barnes TSX BT 78gr
.22 Creedmoor
Barnes .224 | 85gr | Barnes Match Burner 85gr
.22 Creedmoor
Berger .224 | 60gr | Berger FBHP 60gr
.22 Creedmoor
Berger .224 | 60gr | Berger FB Varmint 60gr
.22 Creedmoor
Berger .224 | 62gr | Berger Varmint 62gr
.22 Creedmoor
Berger .224 | 64gr | Berger Varmint 64gr
Subsonic Loads — Vihtavuori N555
Verified subsonic load data combinations using Vihtavuori N555.
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid Target 230gr
.30-06 Spring.
Berger .308 | 230gr | Berger Hybrid OTM Tactical 230gr
.30-06 Spring.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.30-06 Spring.
Hornady .308 | 175gr | Hornady Sub-X 175gr
.30-06 Spring.
Hornady .308 | 190gr | Hornady Sub-X 190gr
.30-06 Spring.
Lapua .308 | 200gr | Lapua Subsonic 200gr
.30-06 Spring.
MAKER .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 200gr
.30-06 Spring.
MAKER .308 | 220gr | MAKER 300 blackout 220gr
.30-06 Spring.
Peregrine .308 | 155gr | Peregrine Subsonic 155gr
.30-06 Spring.
Reichenberg .308 | 154gr | Reichenberg HDB Subsonic 154gr
.30-06 Spring.
Reichenberg .308 | 200gr | Reichenberg Subsonic 200gr
.30-06 Spring.
Sierra .308 | 220gr | Sierra MatchKing 220gr
.30-06 Spring.
Styria Arms | AERO .308 | 190gr | AERO SUB,- smax:23.90 190gr
.308 Win.
Discreet Ballistics .308 | 188gr | Discreet Ballistics Selous Machined Expander 188gr
.308 Win.
Hornady .308 | 190gr | Hornady Sub-X 190gr
.308 Win.
Lapua .308 | 200gr | Lapua Subsonic 200gr
.308 Win.
MAKER .308 | 200gr | MAKER 200 Grain .308 Expanding Subsonic Blackout Bullets 200gr
.308 Win.
MAKER .308 | 220gr | MAKER 300 blackout 220gr
Community Loads — Vihtavuori N555
Sample load data calculated with Vihtavuori N555.
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| Cartridge | Bullet | Barrel (in) | Charge (gr) | OAL (in) | Case Volume (GoW) | Max. Pressure (psi) | Muzzle Velocity (fps) |
|---|---|---|---|---|---|---|---|
| .224 | 69gr | Sierra Tipped MatchKing | 20.0 | ••.• | 2.56 | 51.0 | 56,623 (87%) | 3268 | |
| .224 | 80gr | Hornady ELD Match | 22.0 | 45.0 | 2.70 | 52.0 | 63,770 (98%) | 3264 | |
| .224 | 69gr | Sierra Tipped MatchKing | 20.0 | ••.• | 2.64 | 51.0 | 54,679 (84%) | 3235 | |
| .224 | 88gr | Hornady ELD Match | 26.0 | ••.• | 2.70 | 50.1 | 63,614 (98%) | 3235 | |
| .224 | 80gr | Hornady ELD Match | 24.0 | 42.3 | 2.66 | 51.0 | 55,181 (85%) | 3202 | |
| .224 | 69gr | Sierra Tipped MatchKing | 20.0 | ••.• | 2.64 | 51.0 | 51,861 (80%) | 3182 | |
| .224 | 80gr | Hornady ELD Match | 22.0 | 42.2 | 2.70 | 52.0 | 51,851 (80%) | 3081 | |
| .224 | 69gr | Sierra Tipped MatchKing | 20.0 | ••.• | 2.64 | 51.0 | 43,526 (67%) | 3015 | |
| .257 | 90gr | Hammer Absolute Hammer | 22.0 | ••.• | 2.60 | 51.5 | 37,188 (60%) | 2874 | |
| .257 | 138gr | Hornady A-Tip Match | 26.0 | ••.• | 2.85 | 51.5 | 59,219 (96%) | 2815 | |
| .257 | 135gr | Berger Long Range Hybrid Target | 24.0 | ••.• | 2.87 | 51.6 | 61,545 (99%) | 2785 | |
| .257 | 127gr | Hammer HHT | 26.6 | ••.• | 2.83 | 51.5 | 43,743 (71%) | 2713 | |
| .257 | 133gr | Berger Elite Hunter | 20.0 | ••.• | 2.83 | 51.5 | 55,170 (89%) | 2654 | |
| .257 | 133gr | Berger Elite Hunter | 20.0 | ••.• | 2.83 | 51.5 | 53,014 (86%) | 2625 | |
| .257 | 135gr | Berger Long Range Hybrid Target | 20.0 | ••.• | 2.83 | 51.5 | 49,676 (80%) | 2556 | |
| .257 | 110gr | Sierra Tipped GameKing | 24.0 | ••.• | 3.29 | 72.5 | 63,199 (97%) | 3251 | |
| .257 | 110gr | Sierra Tipped GameKing | 24.0 | ••.• | 3.29 | 72.5 | 59,711 (92%) | 3202 | |
| .257 | 117gr | Hornady SST | 24.0 | ••.• | 2.73 | 58.0 | 47,100 (91%) | 2848 |
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