The 308 Winchester is an inherently accurate cartridge, and is at its best with medium-to-fast burning powders like Varget and BL-C2. Note that if you are loading heavy bullets with slow powders, you may have difficulty seating the bullet deep enough to clear the rifling or fit in the magazine of your rifle. While most large rifle primers work well in the .308, we had our best results with the Federal 210M. The loads listed here were developed using standard commercial brass. Military brass has less case capacity because of its heavier construction. This results in a smaller combustion chamber, and yields higher pressures. We recommend caution when using military brass, and suggest starting at or below the minimum loads listed. Additionally, if your brass originally had crimped primers, this crimp MUST be removed prior to re-priming. If you will be loading for a semi-auto and find that crimping is necessary, a taper crimp is suggested.