Most big guns—from .45 automatics to 155-millimeter howitzers—are described in terms of caliber, or the diameter of their projectile. The weapons in this list are some of the biggest guns in ...

The complete T72 carriage and T131 gun combined into the M65 280-mm heavy motorized gun, affectionately known as “Atomic Annie” – the world’s first atomic artillery piece.

Alamo Four Star LLC is out with a new muzzle brake for big guns. The Lubbock, Texas-based maker of firearm accessories on Wednesday unveiled the so-called Cowl Induction Brake, which it says ...

Military history consultant and former United States Marine Corps Captain Dale Dye told FoxNews.com that, ... The first truly big leap forward in long gun design came with the Caliber .54, ...

FORT CAVAZOS — The 1st Cavalry Division’s 2nd Battalion, 82nd Field Artillery Unit, held a gunnery exercise Wednesday, showcasing the unit’s M109A7 Paladins, which are armed with 155 mm cannons.

The .338 NM machine gun is lighter than the current M240 in 7.62mm but ... Here’s one of the big guns competing to be SOCOM’s ... The .338mm caliber has received some military ...