Speer Total Metal Jacket Handgun Bullets, .40 Caliber / 155 gr (part number 4399), use Speer’s Uni-Cor process to seal the lead core completely inside the jacket, including the base, unlike a conventional FMJ that leaves lead exposed where the jacket doesn’t wrap around. Reloaders load these .40-caliber projectiles for practice and range work where a fully jacketed bullet keeps the bore and the air at an indoor range cleaner than an exposed-lead design. They come 100 to a box, five boxes to the case, for reloaders running through a lot of .40 S&W or 10mm Auto ammunition.

Key Specifications

• .40 Caliber bullet diameter sized for .40 S&W and 10mm Auto handgun reloading.
• 155-grain weight a mid-weight bullet suited to standard-pressure .40-caliber practice loads.
• Total Metal Jacket (Uni-Cor) construction fully encases the lead core, including the base, unlike a conventional FMJ.
• cleaner-shooting than conventional FMJ reducing exposed-lead residue, which matters most at indoor ranges.
• delivers more consistent accuracy than standard FMJ per Speer’s own bullet testing.
• packaged 100 bullets per box a standard bulk count for high-volume pistol reloading.
• sold 5 boxes to the case letting range and club reloaders buy in case quantities.
• built for reloading, not sold as loaded ammunition these are bare projectiles for handloaders, not finished cartridges.
• ships at approximately 2.3125 lb per box reflecting the density of a 100-count box of jacketed bullets.

Frequently Asked Questions

Are these loaded rounds or bullets only? Bullets only. These are bare .40-caliber projectiles for handloaders to seat into their own reloaded cases.

What’s the difference between TMJ and FMJ? TMJ fully encases the lead core, including the base, while a conventional FMJ can leave lead exposed at the base.

Buy the Speer TMJ Handgun Bullets, .40 Cal / 155 gr

Order these .40-caliber TMJ bullets from our Lubbock, TX gun shop with fast shipping to keep your reloading bench stocked. See our full reloading bullets selection for more Speer projectiles.