a .45 caliber.
A 50 calibre machine gun can have any length or width. The inside of the barrel is 1/2 inch. Gradually calibre as a gun size is being dropped in favor of metric. For example 9 mm is replacing 38 calibre. A 38 calibre pistol will shoot a 9 mm bullet. Mortars are now 61 mm instead of a calibre.
for a rifle it is thought to be a .50 calibre but a gun company made there own for there own sniper rifle the .408 calibre
@890 mps
A big gun is a large artillery gun or one of the largest-calibre naval guns, or a person, group or thing which is powerful, influential, or effective.
A belt fed machine gun- no limit. The American 180 was a .22 LR machine gun with a 177 round magazine.
Sons of Guns - 2011 World's Largest Machine Gun 3-6 was released on:USA: 4 April 2012Sons of Guns - 2011 World's Largest Machine Gun - 3.6 was released on:USA: 4 April 2012
The lightest machine gun of the 12.7x99mm or .50 BMG calibre is the XM312 Machine Gun. It is a still a tripod mounted weapon, weighing a good 19 kilos while mounted on a tripod. This is an extremely low weight in comparison to the 58 kilogram predecessor of the XM312, the M2HB/M3 tripod. LW50MG, as it will be known in the US Army, is based on the XM307 25mm Grenade Machine Gun, giving it roughly half the rate of fire of a standard M2HB.
For a rifle it would be the 2 Bore.
His .50 calibre revolver was based on a Crosman 3357 .50 calibre paintball revolver.
light machine gun is the m249 a medium machine gun is the m240 and the heavy machine gun is the browning m2 50. cal machine gun
Automatic is firing one shot after another, like a machine gun. They range from Pistols to Miniguns and fire .22 calibre rounds up to 50 cal., some even larger.