Dating cartridge headstamps
No guarantee is made concerning its safety or fitness for use in any firearm.
All ammunition sales must adhere to applicable Federal, State and Local laws.
] NOTE: We can not sell or ship ammunition to any residents of Kalifornia, Massachusetts or Illinois, or other states or localities run by liberal idiots. Vote the rascals out, or flee to freedom in another state while you still can!
U, UMC or R B (Purchased by Remington in 1911) United States Cartridge Co. The headstamp is the stamped markings on the head of the cartridge. Information that can be obtained from the headstamp is extremely varied and depends on the intended purpose or use of the cartridge and who manufactured it. *Note 1- Headstamps often contain multiple pieces of information. Military ammunition usually includes date information, and civilian ammunition often has caliber information.Sometimes dates are fairly obvious (44 = 1944; 72 = 1972; 6 12 = June 1912, etc.).