Developed originally for 7.62×51 NATO M80 Ball, Vihtavuori’s N135 is today a universal gun powder which is used for large range of calibers from .222 Remington to .458 Winchester Magnum. The N135 is a tubular powder type with grain dimensions of 1,0 mm length and 0,8 mm diameter. The burn rate is medium on the
N135, the universal powder
