N555 Load Data: 787 Published Loads in 25 Cartridges

Empirical Precision indexes 787 published loads for N555 (Vihtavuori) across 25 bottleneck rifle cartridges from 3 reloading sources, spanning projectile weights from 55 gr to 300 gr.

Open N555 in the Load Library Open interactive Burn Chart

Published Loads787

Cartridges25

Sources3

Bullet Weights55–300 gr

Always start low and verify against the original published source before loading.

Powder Data Sheet

Manufacturer: Vihtavuori
Grain Type: Multi-perforated Extruded
Bulk Density: 930 kg/m³

Burn Rate Position

Position #107 of 145 rifle powders on the Empirical Precision relative burn chart (ordered fastest to slowest).

Nearest Faster: SW4350, Ramshot Hunter
Nearest Slower: Power Pro 4000-MR, Reloder 19

A burn chart is a guide, not load data.

Cartridges Published (25)

Cartridge	Published Loads
6.5 Creedmoor	109
30-06 Springfield	96
300 Winchester Magnum	78
22 Creedmoor	74
300 WSM	74
6.5x55 Swedish	48
6mm Creedmoor	44
260 Remington	36
6 GT	24
6.5-284 Norma	24
300 PRC	24
6.8 Western	22
25 Creedmoor	22
284 Winchester	22
6.5 PRC	20
243 Winchester	18
280 Remington	16
6.5x47mm Lapua	10
25-06 Remington	6
7mm PRC	4
22 Nosler	4
300 Norma Magnum	4
375 Holland & Holland Magnum	4
224 Valkyrie	2
270 Winchester	2

Sources Publishing Data (3)

Publisher	Published Loads
Vihtavuori	666
Hornady	86
Sierra	35