The triggerguard has been straightened (Whatever that means?)
The original Enfield design was built around a 7mm Enfield cartridge. When World War I broke out, the British modified the rifle to use the standard .303 British service cartridge and renamed it Pattern 14 (P14). The P14 was manufactured in the United States by Remington and Winchester. When the US entered the war, there were insufficient 1903 Springfields to arms the troops, so the basic Enfield design was altered again and the tooling at Remington and Winchester was used to produce the M1917 version in caliber .30-'06 for the US government. The magazine in the Enfield was large enough to hold six .30-'06 cartridges, which resulted in a deeper magazine than most Americans thought necessary, so in the process of sporterizing the magazine was reduced in capacity to five and the trigger guard modified to permit that. The procedure is generally referred to as "straightening" the trigger guard, although it usually involves cutting and welding the portion of the trigger guard in front of the magazine, where the original guard had a step.
