Experiments with smokeless powder in the existing Lee–Metford cartridge seemed at first to be a simple upgrade, but the greater heat and pressure generated by the new smokeless powder wore away the shallow, rounded, Metford rifling after approximately 6000 rounds. 303 British cartridge, a rimmed, high-powered rifle round. The rifle was also equipped with a detachable, 10-round, double-column box magazine, a very modern development in its day.
The Lee action cocked the striker on the closing stroke of the bolt, making the initial opening much faster and easier compared to the "cock on open" design of the Mauser Gewehr 98. Variants of the Lee-Enfield would serve as the standard infantry rifle of the British army from 1895 to 1957. It was derived from the earlier Lee–Metford, a mechanically similar black-powder rifle which combined James Paris Lee's rear-locking bolt system with a barrel featuring rifling designed by William Ellis Metford. 303 Riflefor which conventional Mauser-style headspacing methods were used.The Lee-Enfield is a bolt-action, magazine-fed, repeating rifle that served as the main firearm used by soldiers of both the British Empire and the British Commonwealth. A gunsmith with a supply of bolt heads should be able to fix the problem in about 5 minutes. The headspace is easily corrected by installing a longer bolt head. It is true that many of the old Lee Enfields were made a little “loose” for battlefield use, but not that loose. Don’t shoot it again in its present condition.
303 British headspace gauges measure rim thickness.Ī: The answer to both your questions is, “Yes.” Your cases are showing signs of incipient head separation. Is this a sign of excessive headspace?I’ve been told that these rifles were purposely made with maximum tolerances for use in muddy and dusty battlefield conditions, Does this situation pose any serious problems? The cases also have a bright ring around the base and a slight bulge at that point. Q: Fired cases are difficult to extract from my Lee-Enfield No.1 Mark III. Different length bolt heads for No 1 rifles (left) and Nos 4&5 rifles(right).
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