Input (grade 5): The safari heyday of the early 20th century 'Nitro era' records much literature on such calibres as the .577 Nitro Express, .375 H&H Magnum, .416 Rigby, .404 Jeffery, .505 Gibbs, .450 Nitro Express, .470 Nitro Express and many others.
Output (grade 5): The safari heyday of the early 20th century 'Nitro era' records much writing on such calibres as the .577 Nitro Express, .375 H&H Magnum, .416 Rigby, .404 Jeffery, 505 Gibbs, .450 Nitro Express, .470 Nitro Express and many others.