Original sentence: 275 Rigby, after the measurement of a 7 mm rifle's bore across the lands.American 7 mm cartridges have 7.21 mm (0.284 in) grooves diameter.European 7 mm cartridges all have 7.24 mm (0.285 in) grooves diameter.Teddy Roosevelt and the Rough Riders took very heavy casualties attacking an inferior force armed with 7 mm Model 93 Mauser rifles.The 7x57mm cartridge, also known as the 7 mm Mauser, 7x57mm Mauser, 7 mm Spanish Mauser in the USA and.The common rifling twist rate for this cartridge is 220 mm (1 in 8.66 in), 4 grooves, diameter of lands = 6.98 mm, diameter of grooves = 7.24 mm, land width = 3.90 mm and the primer type is large rifle.This took a smokeless powder centerfire cartridge with a bullet with a nominal diameter of 7 mm (0.285 in), and a case length of 57 mm - hence the names "7x57mm Mauser" and "7x57mm Spanish Mauser"
Edited sentence: 275 Rigby, after the measurement of a 7 mm rifle's bore across the lands.American 7 mm cartridges have 7.21 mm (0.284 in) grooves diameter.European 7 mm cartridges all have 7.24 mm (0.285 in) grooves diameter.Teddy Roosevelt and the Rough Riders took very heavy casualties attacking an inferior force armed with 7 mm Model 93 Mauser rifles.The 7x57mm cartridge, also known as the 7 mm Mauser, 7x57mm Mauser, 7 mm Spanish Mauser in the USA and.The common rifling twist rate for this cartridge is 220 mm (1 in 8.66 in), 4 grooves, diameter of lands = 6.98 mm, diameter of grooves = 7.24 mm, land width = 3.90 mm and the primer type is large rifle.This took a smokeless powder centerfire cartridge with a bullet with a nominal diameter of 7 mm (0.285 in), and a case length of 57 mm - hence the names "7x57mm Mauser" and "7x57mm Spanish Mauser"