When they say that 50 BMG is 12 mm, do they mean only for the bullet or the whole cartridge? - Quora
![Barrett M95 bolt-action bullpup rifle in caliber .50 BMG: with the Big Fifty on the shooting range | all4shooters Barrett M95 bolt-action bullpup rifle in caliber .50 BMG: with the Big Fifty on the shooting range | all4shooters](https://www.all4shooters.com/en/shooting/rifles/barrett-m95-50-bmg-long-range-bolt-action-bullpup-in-bmg-test/barrett-m95-with-cartridges-and-ear-protection.jpg)
Barrett M95 bolt-action bullpup rifle in caliber .50 BMG: with the Big Fifty on the shooting range | all4shooters
![The fifties" .50 / 12.7mm - General Ammunition Discussion - International Ammunition Association Web Forum The fifties" .50 / 12.7mm - General Ammunition Discussion - International Ammunition Association Web Forum](https://global.discourse-cdn.com/business6/uploads/cartridgecollectors/original/3X/6/e/6ea568b9a5d3e28e4703a0b974a0817d1552ec55.jpeg)
The fifties" .50 / 12.7mm - General Ammunition Discussion - International Ammunition Association Web Forum
![STL file Set of Assault Rifle - 50 BMG - 5.56 x 45 NATO - 7.62 x 39 AK47・3D printer model to download・Cults STL file Set of Assault Rifle - 50 BMG - 5.56 x 45 NATO - 7.62 x 39 AK47・3D printer model to download・Cults](https://files.cults3d.com/uploaders/13989234/illustration-file/5a3f6416-33b8-44da-8967-a13965287c9b/fw190-cults.png)