The M1299 was armed with a new 155 mm L/58 caliber long, 9.1 m gun tube, XM907 gun, designed by Benét Laboratories to fire the XM1113 rocket-assisted round. This would give a range of over 70 km (43 mi) – much greater than the 38 km (24 mi) of the M109A7 Paladin.

Sep 5, 2022 · Rheinmetall subsidiary American Rheinmetall Munitions Inc., has been awarded a US Army contract for the provision of prototype artillery Extended Range Charge (ERC) technology for firing munitions out of a L58 length 155mm artillery cannon.

Dec 14, 2019 · Compared to its predecessors, the M1299 artillery system is receiving two leading-edge technologies: new XM1113 rocket-boosted shell and a longer 58 caliber tube, which increases the range from 38 km to 70 km+, and 100 km within the forthcoming four years.

Sep 1, 2022 · Rheinmetall will supply its latest artillery propellant charge technology to the U.S. Army. American Rheinmetall Munitions Inc., located in Stafford, VA is on contract to prototype an artillery extended range charge (ERC) for firing munitions out of …

Sep 6, 2022 · The ERC will reportedly extend the range of 155-mm munitions by 10 percent when fired from an L58 length artillery cannon. According to Rheinmetall, the contract builds upon its successful collaboration with the army in researching and developing new technologies to bolster the capabilities of its 155-mm munitions.

Oct 16, 2018 · Driven by concerns about its artillery units getting outranged in large-scale conflicts against “great power” opponents, such as Russia and China, the U.S. Army has been steadily pushing to extend the range of its self-propelled and towed 155mm howitzers.

Sep 1, 2022 · This ERC increases ranges achieved from U.S. Army 155mm munitions by approximately 10% over any other artillery propellant currently fielded today. It builds upon a successful cooperative R&D effort with the U.S. Army for …

Sep 4, 2022 · Rheinmetall will supply its latest artillery propellant charge technology to the US Army. American Rheinmetall Munitions Inc., located in Stafford, VA, is on contract to prototype an artillery extended range charge (ERC) for firing munitions out of …

Sep 1, 2022 · American Rheinmetall Munitions Inc., located in Stafford, VA is on contract to prototype an artillery extended range charge (ERC) for firing munitions out of a L58 length 155mm artillery cannon. This ERC increases ranges achieved from US Army 155mm munitions by approximately 10% over any other artillery propellant currently fielded today.

With current designs, ramjet motors can be fired from any L39 orL52/L58 artillery cannon, and have demonstrated reliable ignition and in-house flight. Nammo has partnered with Boeing on a project that will deliver ramjet for 155mm artillery.