Full metal jacket (FMJ) bullets are rare in precision shooting. They are durable and easy to manufacture and are, therefore, the most common bullet style in economy-priced ammunition. In addition to being durable while they are handled and fed into the chamber, FMJ bullets are also known for their ability to penetrate without expanding compared to other styles of bullets. This is not desirable when hunting, and as such, FMJ bullets are usually banned for hunting purposes.
