the .50 BMG (Browning Machine Gun) is the biggest bullet you are going to find in a gun still classified as a rifle and not a cannon. the first rifle to be able to shoot this cartrige was the M2 Browning Machine Gun (Ma Duce). however that was a heavy machine gun. the first "sniper rifle" to shoot the .50 BMG was the Barret M82. they have now come out with a new version called the M107 and are currently working on a new rifle. while the M107 and M82 are semi automatic, some gun companies are coming out with bolt action rifles, such as MacMillan, which are more accurate than the barret, simply because it is a bolt action compare to a semi auto an bolt actions will always be more accurate.
The most powerful cartridge developed specifically for civilian use would be the .585 Nyati.
There is no most powerful airsoft sniper rifle that you can just buy. But, Iv'e heard of guys tuning them over 800fps with custom parts. My most powerful is 600fps.
First, it is rifle, not riffle. Second, no, or we would shoot tanks with a rifle. Cannon are more powerful. Finally, depends on the rifle. I have a .22 rifle and a .44 magnum pistol. The pistol is far more powerful than the rifle. I also have a .22 pistol, and a 30-06 rifle. The rifle is far more powerful than the pistol (in THAT example).
No specific term of reference. There are semi auto pistols that fire rifle cartridges, and are much more powerful than standard pistols.
.950 J D Jones
Anzio Iron Works 20mm
thr .405 Winchester is the most powerfull lever action rifle used by teddy Roosevelt in Africa on safari.
The Russian mafia is the 2nd most powerful mafia in todays world. The Italian mafia is the most powerful mafia in the world
Not even close. There are several more powerful handgun cartridges, not counting the single shot pistols that use rifle cartridges. While Dirty Harry may have proclaimed it to be "The most powerful handgun in the world"- it is not.
The Lee Enfield .303 was the most powerful and reliable rifle with, although being a bolt action rifle, a very high rate of fire and an approximate 80% chance of death if hit by one, compared to 35% chance of death if hit by the next best rifle.
The president isn't the most powerful person in the world. God is. Presidents are the most powerful and important people in the USA.
The cannon. If you mean powerfully based on accuracy then the rifle.