Depends on if you are talking about military or civilian and what "strongest" means to you.
It is argued that the .50 BMG cartridge is the most effective rifle round in existence, combining both size and power giving it effectiveness at even the most extreme distances.
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
700 nitro is just BEAST
The biggest was Little Boy (1946)
That is the most stupid question you have ever asked.
Depends on the exact weapon
on your computer type in T-Rex, I think it's made by A square, watch the movie, and laugh.
A single shot rifle @ 1824.
$800,000.000 known as the falcon rifle
@ 2000 and 2400 M
A 25-06... That's just me
no