English: The five most common bullets used in .30-03 and .30-06 Springfield United States military loadings from left to right: M1903 bullet (220 grain round nose), M1906 ball (150 grain spitzer), M1 ball (173 grain spitzer boat tail), M2 ball (152 grain spitzer), and M2 Armor-Piercing (AP) (168 grain armor-piercing) bullet. Black paint has chipped off the tip of the AP bullet during rough handling. The cannelure indentation around each bullet is where the leading edge of the case would be crimped into the bullet. The four spitzer bullets used in the .30-06 Springfield cartridge case were loaded with a nearly identical tangent ogive exposed for reliable functioning in self-loading firearms, while the earlier M1903 bullet is positioned to illustrate the longer neck of the preceding .30-03 cartridge.