This describes the typical .45 ACP military "ball" shape. The most practical rifle length is the 1-E ogive (1-E) in which the length of the ogive is the same as the caliber. This is identical to nearly all of the 1850-1900 blackpowder bullet noses, such as the Sharpes, Winchester...
However, it does have a military angle, as it was designed with approval from the British Army Parachute Regiment. Field watches were originally military instruments, developed to allow precision manoeuvres at key timings and so the C63 Colchester builds on the existing field watch legacy. Safety ...