Vihtavuori N150 rifle powder is a slow burning powder, well suited to most common mid-sized cartridges when used with heavier bullets in accuracy and hunting loads. N150 is an excellent choice for 185-220 grain bullets in the .30-06, 140-160 grain bullets in the 6.5x55, and 175-200 grain bullets in the .308 Win. Combining Vihtavuori’s latest de-coppering technology and enhanced temperature stability, N150 is a tremendously versatile powder with a lot of options even for the demanding handloader.