Hodgdon H335 Spherical Rifle Powder was originally used by the military specifically the .223 Remington and 5.56 NATO but today it remains a popular choice for small cartridges when hunting squirrels prairie dogs and other small prey. This powder is an affordable choice for reloading and comes with a solid backing from the manufacturer.This smokeless powder has a fast burn and is easy to meter. The manufacturer provides a warning that loads displayed in the guide should never be exceeded and at no time should any two different powders be mixed no matter the brand or type.