Hodgdon Powder offers the largest selection of quality smokeless propellants for any reloading application. Do not exceed the loads displayed in the reloaders guide. Never mix any two powders regardless of type, brand, or source. Never substitute any smokeless powder for Black Powder or any Black Powder substitute.
Hodgdon H335 originated as a military powder, used for the 5.56 NATO, or 223 Remington as handloaders know it. Obviously, it sees endless use in the 222 Remington, 223 Remington and other small cartridges. In particular, prairie dog shooters will find this a favorite small rifle powder. Hodgdon also lists loads for several other calibers including .308, 30-06, and .270.
Warning About Smokeless Powder: