Accurate 4064 Powder is a company that definitely lives up to its name.
The complete line of smokeless powders for handguns, rifles, and shotguns is engineered and lab-tested to maximize the precision and performance, this product uses the best ballistic technicians and the highest quality components together to assure that every gun is better served with Accurate Powders
This versatile powder works extremely well in calibers such as 22-250, 220 Swift, 243 WSM, 7×57 Mauser and the 325 WSM.
Accurate 4064 Powder is a popular choice for High Power shooters using the M1 Garand.
Warnings from the Manufacturer:
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.