Type: Single-base, tubular rifle powder (grains ~1.3 mm × 1.1 mm) with a symmetrical shape that meters well and flows consistently in most powder measures .
Burn Rate: Medium burn—well-balanced for mid-sized cartridges like .30‑06, .308 Win, 6.5×55 SE.
Temperature Sensitivity: Among Vihtavuori powders, N150 is especially temperature-insensitive and includes decoppering agents for cleaner bores.
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