Schneider-Canet 75mm mountain gun M. 1897

Bulgarian designation :75-мм нескорострелно планинско оръдие “Шнайдер”Calibre :75mm L/13Weight of the barrel :102 kgWeight of the carriage :164 kgWeight in action :266 kgBarrel length :9.750 mBarrel groovesnumber :24depth :1.25 mmangle of twist :progressive, 5° 07’ to 7° 10’Battering charge :400 g of black powder165 kg of smokeless powderCommon shellweight :4.3 kg - charge : 94 g of gunpowdermax. range :4000 mShrapnelweight :4.3 kg – charge : 40 g of gunpowder170 bullets x 11 gmax. range :2200 mMuzzle velocity :294 m/sRemaining velocity :209 m/s at 3000 mElevation :+ 20° / - 6°Transport :4 loads: 1 – barrel; 1 – trail; 1 – wheels and shaft; 1 – two ammunition boxes weighting 48 kg eachAmmunition :138 shellsRemarks :Slow firing mountain gun with screw breechblock mechanism with a plastic obturator. It fired the same projectiles as the 75mm field gun M. 1886, but it employed a lighter battering charge. At first it was composed by black powder, but later the gun was modified to use the pyroxylin smokeless powder. To reduce the recoil, the carriage was equipped with brakes that acted on the naves of the wheels and prevented them to turn freely.The information about this gun is scarce. According with the Militärwissenschaftliche Mitteilungen 37 (1906), p. 473, it weighted only 98 kg, and the data might be corrected, since its barrel had the same length of the Krupp mountain gun M. 1886, but was equipped with a lighter breechblock. On the contrary, if the Bulgarian data, reported by Angel Angelov, is correct, the difference of the weight might be caused by the addition of a hoop to strengthen the barrel.