Federal Premium Syntech Defense 9mm Luger 138gr HP Handgun Ammo - 50 Rounds - All-new Syntech Defense provides dynamic terminal performance with a hollow-point bullet that separates into three segments and a deep-penetrating core on impact. The petals create three secondary wound channels, each more than 6 inches deep, adding to the terminal effect. Like all Syntech loads, an advanced polymer jacket eliminates lead and copper fouling and drastically reduces damaging heat and friction in the barrel. Its Federal exclusive Catalyst primer provides hot, extremely reliable ignition without the use of lead. Core Achieves 12 To 18 -Inches Of Penetration In Both Bare Ballistics Gel And Through Heavy Clothing Blue Polymer Jacket Reduces Barrel Heat And Friction And Eliminates Metal Fouling