Krupp 9cm field gun

Bulgarian designation :9-см недалнобойно полско оръдие “Круп” обр. 1867 г.German designation :9cm-Stahlkanone C/61Calibre :91.5mm L/22.6Weight of the barrel :425 kgWeight of the breech-block :32.2 kgWeight of the carriage :546 kgWeight in action :971 kgWeight in marching order :2262 kgWeight of ammunition wagon :2722 kgBarrel length :2.04 mLength of the bore :1819 mmBarrel groovesnumber :16depth :15.5 mm (at breech) / 11.5 mm (at muzzle)width :2.5 mm (at breech) / 6.5 mm (at muzzle)twist :4530 mm – 50 calibresBattering charge :0.6 kg of black powder (Grobkörniges Art.-Pulver)Shellweight :6.9 kg – charge : 250 gmax. range :3440 mShrapnelweight :6.91 kg170 bullets x 17 gmax. range :2200 mCase shotweight :5.25 kg – ? zinc balls x 86 gmax. range :500 mMuzzle velocity :322 m/sLength of the line of sight  :937 mmElevation :+ 15° / - 8°Ammunition :gun carriage – 1 case shot, gun limber – 38, wagon limber – 36, wagon body – 63Remarks :Old Turkish steel gun, cylindro-prismatic wedge breech mechanism. It was almost identical to the gun adopted by the Prussian army, except that the latter had a piston breech mechanism. In 1864-74 Turkey bought from Krupp 461 of these guns, some of them were captured by the Russians in 1877-78 and later delivered to the Bulgarian Army. Serbia bought 6 of these guns in 1874.