VihtaVuori N150 is a slow burning powder, well suited to most common mid-sized cartridges when used with heavier bullets in accuracy and hunting loads. An excellent choice for 185-220 grain bullets in the 30-06 Springfield, 140-160 grain bullets in the 6.5x55mm, and 175-200 grain bullets in the 308 Winchester. Great for 6.5 Creedmoor. Combining Vihtavuori’s latest decoppering technology and enhanced temperature stability, N150 is a tremendously versatile powder.