The Ordnance BL 2.75-inch mountain gun was a screw gun designed for and used by the Indian Mountain Artillery into World War I. The gun was an improved...

British Army or the Indian Army, which used the BL 10 pounder Mountain Gun and later the BL 2.75-inch Mountain Gun, but it was used from 1900 by the defence...

The British BL 6-inch gun Mk XIX was introduced in 1916 as a lighter and longer-range field gun replacement for the obsolescent BL 6-inch gun Mk VII. The...

The Ordnance BL 60-pounder was a British 5-inch (127 mm) heavy field gun designed in 1903–05 to provide a new capability that had been partially met by...

The Ordnance RML 2.5-inch mountain gun was a British rifled muzzle-loading mountain gun of the late 19th century designed to be broken down into four loads...

The Ordnance BL 10 pounder mountain gun was developed as a BL successor to the RML 2.5 inch screw gun which was outclassed in the Second Boer War. This...

7-inch weapon until 1915. As a stop-gap, the barrel of the 10-pounder gun was mounted on an updated carriage to produce the 2.75 inch Mountain Gun. The...

Ordnance BL 9.2 inch gun on truck, railway mounted a variety of surplus 9.2 inch naval guns, together with the custom-designed Mk XIII railway gun, on various...

The BL 12 inch Gun Mark X was a British 45-calibre naval gun which was mounted as primary armament on battleships and battlecruisers from 1906. It first...

The BL 6-inch gun Mark VII (and the related Mk VIII) was a British naval gun dating from 1899, which was mounted on a heavy travelling carriage in 1915...

The BL 9.2-inch Mk IX and Mk X guns were British breech loading 9.2-inch (234 mm) guns of 46.7 calibre, in service from 1899 to the 1950s as naval and...

The Ordnance BL 9.2-inch howitzer was a heavy siege howitzer that formed the principal counter-battery equipment of British forces in France in World...

Ordnance BL 12-inch howitzer was a scaled-up version of the successful BL 9.2-inch siege howitzer. Following the success of their BL 9.2-inch howitzer...

The Ordnance BL 6 inch 26cwt howitzer was a British howitzer used during World War I and World War II. The qualifier "26cwt" refers to the weight of the...

The BL 4-inch gun Mk VII was a British high-velocity naval gun introduced in 1908 as an anti-torpedo boat gun in large ships, and in the main armament...

The Ordnance BL 15-pounder, otherwise known as the 15-pounder 7 cwt, was the British Army's field gun in the Second Boer War and some remained in limited...

Ordnance BL 15-inch howitzer was developed by the Coventry Ordnance Works late in 1914 in response to the success of its design of the 9.2-inch siege howitzer...

The BL 6-inch gun Marks II, III, IV and VI were the second and subsequent generations of British 6-inch rifled breechloading naval guns, designed by the...

The Ordnance BL 5-inch howitzer was initially introduced to provide the Royal Field Artillery with continuing explosive shell capability following the...

The BL 7.5-inch Mk II–Mk V guns were a variety of 50-calibre naval guns used by Britain in World War I. They all had similar performance and fired the...

was also used as a coast defence gun. This QF gun was introduced to provide a higher rate of fire than the BL 4 inch Mk VII. It first appeared in 1914...

The BL 8-inch howitzer Marks VI, VII and VIII (6, 7 and 8) were a series of British artillery siege howitzers on mobile carriages of a new design introduced...

The 2 inch medium trench mortar, also known as the 2-inch howitzer, and nicknamed the "toffee apple" or "plum pudding" mortar, was a British smooth bore...

The British Ordnance BL 12 inch gun Mk IX on truck, railway mounted surplus 12 inch Mk IX W naval guns, manufactured by Woolwich Arsenal in 1906, on various...

The 1.59-inch breech-loading Vickers Q.F. gun, Mk II was a British light artillery piece designed during World War I. Originally intended for use in trench...

BL 14-inch gun on truck, railway were 2 British 14-inch Mk III naval guns mounted on railway carriages, used on the Western Front in 1918. The guns had...

The Ordnance BLC 15-pounder gun (BLC stood for BL Converted) was a modernised version of the obsolete BL 15-pounder 7 cwt gun, incorporating a recoil and...

long-range gun. They all had a barrel of 40 calibres length. The gun was originally designed to replace the older BL 5-inch (127 mm) naval guns. It was optimised...

3-inch trench mortar is a smooth-bore, muzzle-loading weapon for high angles of fire. Although it is called a 3-inch mortar, its bore is actually 3.2 inches...

The BL 8-inch howitzer Mark I through to Mark V (1 to 5) were a British improvisation developed early in the First World War to provide heavy artillery...