152mm long gun M. 1867

Bulgarian designation :24-фунтово дълго оръдиеRussian designation :24-фунтовая медная длинная пушка обр. 1867 г.Calibre :152.4mm L/21.25Weight of the barrel :2236 kgWeight of the breech-block :128 kgWeight of the carriage :725 kg (without wheels)Weight in action :3251 kgWeight in marching order :3866 kgWeight of the platform :1370 kgBarrel length :3.230 mBarrel groovesnumber :24depth :1.78 mmwidth :12.7 mmBattering charge :2.87 kg2.46 kg (shrapnel)Cast iron bomblength :2 calibres (296 mm)weight :29.2 kg – charge : 620 g of artillery gunpowderfuze :percussion fuze of Prussian model : 105 gmuzzle velocity :325 m/s 6 lbsmax. range :5335 mShrapnelweight :35.5 kg – 628 bullets x 21.3 g x 15.9 mmfuze :17 sec. time fuzemuzzle velocity :273 m/smax. range :3490 mCanister bombweight :35.2 kg - charge : 0.1 kg of artillery gunpowder230 ball x 23.5 g x 15.9 mmfuze :7 sec. time fuzemuzzle velocity :283 m/smax. range :1920 mCase shot :length :1.55 calibres (236 mm)weight :22.1 kg132 balls x 138 g x 29.5 mmElevation :+ 25° / - 3°Wheelsweight :290.7 kg (with travelling wheels 309 kg)height :1473 mm (with travelling wheels 1626 mm)track :1524 mmTransport :drawn by six horsesRemarks :Russian bronze fortress gun delivered in 1878, after the war of Liberation. In firing position it should be placed on a wooden platform. It could fire both canister bomb (картечна бомба), an early model of shrapnel, and canister. It could also fire with reduced charges, but, according with Angel Angelov, the Bulgarian gunners were not trained to do it and in addition there were firing table only to fire at full charge.In 1896 the artillery engineer lt. Stefan Slavchev carried out plans to upgrade these guns. Their breech chambers were modified to use smokeless powder and the guns were equipped with arc sight. The changes were made in the Sofia artillery arsenal.