The top competitive shooters and manufacturers use Vihtavuori Smokeless Powder, which has a great reputation. These powders burn cleanly and shoot reliably in all weather. Vihtavuori Smokeless Powders have excellent quality since they control the entire manufacturing chain from nitrocellulose production to bottling. These tight quality acceptance limitations have helped reloaders and cartridge makers obtain identical loads independent of production lot for over 85 years. It’s clear why elite shooters worldwide prefer Vihtavuori Smokeless Powders.
Single-base porous handgun powders are N300 series. Vihtavuori N310, formerly N14, is a single-base, tubular powder with grain size of 0.7 mm length and 0.6 mm diameter. Powder flows freely and meters well in reloading due to its tiny size and almost symmetrical grain size. N310 powder is permeable like other N300 powders. Powders burn faster when porous. Vihtavuori N310 works with heavier bullets as well as light target loads. Shotgun ammunition producers utilize it in their premium cartridges with light 24 gram target loads because it is adaptable. Blank ammo makers use the N310.
Another important fact:
Don’t load more than what is shown in the reloaders guide.
Never mix two different types, brands, or sources of powder.
Never use smokeless powder or any other kind of powder that isn’t Black Powder.