The Royal Ordnance L11A5, officially designated Gun, 120 mm, Tank L11, [i] is a 120 mm L/55 rifled tank gun design. It was the second 120 mm calibre tank gun in service with British Army. It was the first of NATO's 120 mm main battle tank guns which became the standard calibre for Western tanks in the later period of the Cold War. A total of ...

The 120 mm L11 tank gun traces its origins back td the 1950s, and the first firing trials took place during 1961. Breech obturation is obtained by the use of an expanding steel ring on the face of the breech block.

The Royal Ordnance L11A5 is a 120 mm L/55 rifled tank gun design. It was the first of NATO's 120mm tank guns which became the standard calibre for Western tanks in the later period of the Cold War. A total of 3,012 L11 guns were produced at a reported unit cost of US $227,000.[1]

l11坦克炮是英国皇家兵工厂于50年代末研制的，用来歼灭有生力量、坦克及其他装甲目标的安装于坦克炮塔上的采用45倍口径的坦克炮。 中文名 L11坦克炮

是英国军方的新式远程 狙击步枪，这种武器能够在1英里（约1.6公里）外对目标实施精准打击，它将被应用于 阿富汗 战场，取代之前射程较短、火力较弱的武器。 据英国《每日邮报》2008年3月7日报导，这款型号为L115A3的 狙击步枪 重6.8千克、长130厘米，能够射出更重的子弹，且弹速能达到每秒936米，远超过英军使用的L96 狙击枪 的每秒838米弹速和1000米的射程。 同时新款枪还装有一个高科技望远 瞄准镜，是L96的瞄准放大功能的一倍， 这种枪将带来巨大变化，敌 …

120mm Royal Ordnance L11 rifled gun shown on Chieftain main battle tank in a museum.

The 120 mm L11 uses a large'.vertical sliding breech block with an integral vent tube magazine'for firing the propellant charges. The barrel is of a one-piece construction with a bore evacuator two-thirds of the way to the muzzle. Normally, a thermal sleeve is fitted around the barrel.

The British L11 and L30 120-mm/55-caliber tank guns are among the largest rifled combat vehicle guns in current service. The L11, along with its variants, have provided the main armament on the Royal Army's Chieftain and Challenger tanks and on export versions on the Chieftain.

The L115A3 rifle, part of the Sniper System Improvement Programme (SSIP), is a large-calibre weapon which provides state-of-the-art telescopic day and night, all-weather sights, increasing a sniper's effective range considerably. The first batch of …

The Royal Ordnance L11A5, officially designated Gun 120 mm Tk L11, [lower-roman 1] is a 120 mm L/55 rifled tank gun design. It was the first of NATO's 120mm Main Battle Tank guns which became the standard calibre for Western tanks in the later period of the Cold War. By 2005, a total of 3,012 L11 guns were produced.