The cost of a 50 cal. BMG bullet is about $3,000 if you go to the right store!!
The 50 BMG - @ 1910.
In 1945, cost was $1,560 US dollars
50 BMG
The 12.7x99mm/Caliber .50 cartridge used in rifles such as the Barret M82, MacMillan Tac-50, and others, as well as in the M2 machine gun is known as the .50 BMG - not the weapons themselves. BMG stands for "Browning Machine Gun", as the cartridge was developed for the Browning M2 machine gun.
For .50 BMG, ammo is about $4.50 to $5 per cartridge for ordinary ball ammo. Some specialty ammo is MUCH more expensive.
For a .50 BMG rifle, $3000 and up, with $3000 being just for a basic, bolt action single shot model.
The .50 caliber is larger in diameter than the .308. If you are referring to the bullets for the .50 BMG and the .308 Winchester, the .50 is MUCH heavier, and much longer than the .308.
You will have to contact the company
Depends on which .50 cal, and which cartidge. If you mean a Barrett Model 82A1 sniper rifle, in .50 BMG, standard ball ammo is ABOUT 2800 fps.
If you mean the .50 BMG (there ARE other .50 caliber cartridges) it is a restricted firearm, requires licensing. There was a move to ban further imports of .50 cal BMG AMMO and rifles, but do not know where that stands.
50 BMG