The .50 caliber round can penetrate all of the commonly found urban barriers except a sand-filled 55-gallon drum.A 50-caliber bullet is used in long-range target and sniper rifles, as well as other .50 machine guns, as well for USB 2.0 flash drive.
Here is an example, Active Media launched a new flash drive in the shape of a 50-caliber bullet. The drive measuring 3 x 0.6 inches, features a rugged aluminum case with an air-tight rubber seal, making the drive waterproof when closed. It has gold color finish, comes with steel keychain and clip for attaching the drive to a backpack or keyring, and is available in 4GB and 8GB capacities.
You can find it at Amazon at approximately $12 for the 4GB model and $21 for the 8GB drive.
