Accurate Powders 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.
2520 also performs extremely well in 223 Remington with heavy match bullets (62 to 80 grain). This versatile powder has superb flow characteristics and is well within the threshold limit for the M14 systems.
WARNING: This product can expose you to chemicals which are known by the state of California to cause cancer and birth defects or other reproductive harm.