40 Smith & Wesson .400 Caliber 165 Grain Syntech TSJ CB Pistol Bullets 100 Count by Federal Premium Ammunition now offers the Federal 40 Smith & Wesson .400 Caliber 165 Grain Syntech TSJ CB Pistol Bullets in a convenient 100 count box. These bullets are a complete departure from traditional bullet design. Federal has encapsulated a lead core .400 diameter bullet in a red polymer shell. This eliminates any bullet metal case to barrel which will remove copper fouling and significantly reduce cleaning requirements. Barrel heat is reduced by 14% and Federal reports that barrel wear is reduced by 12%. An additional benefit is that the polymer shell helps contain lead fragments when shooting steel targets. Summary The new Total Synthetic Jacket (TSJ) bullets from Federal are now available. These unique bullets have a polymer shell that contains the pure lead core to prevent fouling and wear in the barrel. The polymer shell also helps reduce lead splash-back when shooting steel. Federal has provided load data on their website at: Federal TSJ Load Data TSJ Load Data Specifications and Features: Perfect for Target Shooting .400 Diameter and 40 S&W Polymer Jacket Reduced Fouling Reduced Barrel Wear
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