The exterior of JHP bullets is completely covered by jacket, including the nose radius, for total reliability. Sierra's Power Jacket with skives enhances expansion in varmints at handgun velocities. Pure lead is used for the core to give good penetration with excellent expansion. The 125 grain #8125 bullets brings it's excellent qualities to the larger 9mm cartridges, such as the 9mm Luger (9x19 mm), 9x21 mm, 357 Sig, and 38 Super. These bullets are effective in the varmint fields and have gained great favor with many law enforcement agencies. Additionally, many top handgunners use 125 grain bullets for their accuracy and reliability in target competitions. These bullets are truly exceptional in all respects.