Here is a picture of the .43 caliber cartridge for the Remington-Keene rifle that I mentioned in a previous post, plus min.-max. measurements from three different specimens. There is a E. Remington box for this cartridge labeled “Remington Magazine Rifle, Spanish Model”, while The .45-70 box is labeled “Remington Magazine Rifle”.
Case lenght: 55.12-55.56 mm (2.170-2.187")
Body Lenght: 36.93-37.38 mm (1.453-1.471")
Neck lenght: 11.70-12.15 mm (.460-.478")
Rim diameter: 15.34-15.67 mm (.603-.616")
Head diameter: 13.23-13.37 mm (.520-.526")
Shoulder diameter: 12.82-12.90 mm (.504-.507")
Neck diameter: 11.62-11.88 mm (.457-.467")
Bullet diammeter: 11.08-11.15 mm (.436-.438")
Overall lenght: 67.46-68.77 mm (2.605-2.707")