Why is it said that the .50 BMG bullet is 12.7mm? Is the bullet

Ammunition belt with 12.7mm (.50 cal) cartridges for heavy machine

What is the difference between a 50-caliber bullet and a 12.7mm one? - Quora

Is there a sniper round/bullet bigger than the 50 BMG? - Quora

12.7 x 108 mm Cartridges – Atlas Internazionale Ltd

Barrett M95 bolt-action bullpup rifle in caliber .50 BMG: with the

Is there a bullet that is bigger than .50 BMG? - Quora

decorative ammunition Cartridge Cartridge .50 BMG 12,7x99

Chart of all Rifle Calibers In Order, And Their Power – Backfire

Could a .50 caliber bullet kill you within 3 feet of passing you and not actually hitting you just because of the air displacement? - Quora

Are there bullets more powerful than a .50 caliber that can be used in weapons that a single man can operate and carry around? - Quora

12.7x99 / .50 BMG Stonex barrel lubricating bullets - General

New Models of Russia's 50-year Old Heavy Machine Gun Fielded in

2.7x99mm cartridge? - General Discussion - Generation Zero Forum

Is there a difference between a .50 caliber bullet that is fired in a pistol and that which is fired in the large type of .50 caliber machine guns? - Quora

What is the difference between a 50-caliber bullet and a 12.7mm one? - Quora