When they say that 50 BMG is 12 mm, do they mean only for the bullet or the whole cartridge? - Quora
![50 Caliber Brass Bullet Custom Engraved Paperweight, 50 BMG, Sniper, Machine Gun, Personalized, Military Gift, Paper Weight, Dark Laser Engraving, Dummy, Very Large, Heavy 50 Caliber Brass Bullet Custom Engraved Paperweight, 50 BMG, Sniper, Machine Gun, Personalized, Military Gift, Paper Weight, Dark Laser Engraving, Dummy, Very Large, Heavy](https://cdn.shopify.com/s/files/1/0934/0606/products/50CaliberPaperweightQuarterComparisonSnip_medium.jpg?v=1653408886)
50 Caliber Brass Bullet Custom Engraved Paperweight, 50 BMG, Sniper, Machine Gun, Personalized, Military Gift, Paper Weight, Dark Laser Engraving, Dummy, Very Large, Heavy
![PMC Ammunition Bronze 660 gr Full Metal Jacket Boat Tail .50 BMG Ammo, 10/box - 50A | Palmetto State Armory PMC Ammunition Bronze 660 gr Full Metal Jacket Boat Tail .50 BMG Ammo, 10/box - 50A | Palmetto State Armory](https://palmettostatearmory.com/media/catalog/product/7/8/785115-PMC_Ammunition_Bronze_660_gr_Full_Metal_Jacket_Boat_Tail_.50_Ammo_10_box_50A.jpg)