Hornady Custom pistol ammo is loaded with the best bullets, primers, and casings that Hornady has to offer. All are supremely accurate, and deliver maximum knockdown power.FeaturesSelect Cases – Hornady produces most of the brass for Hornady Custom pistol ammo. All other brass is chosen to ensure it meets our unusually high standards for reliable feeding, corrosion resistance, proper hardness and the ability to withstand maximum chamber pressures.Powder – Each cartridge is loaded to ensure optimal pressure, velocity and consistency from lot to lot.Primers – Like the powder, each primer is carefully matched to individual loads, and specifically selected for their ability to quickly, completely, and reliably ignite the powder charge.XTP Bullet – The XTP bullet demonstrates the kind of accuracy which led many competitive shooters to adopt it. Its reliable performance makes the XTP the most popular handgun bullet for both target shooters and hunters. It’s the stopping power of the XTP bullet that has truly built its world-class reputation. From the onset, XTP bullets were specifically designed to expand reliably at a wide range of handgun velocities to deliver deep penetration with every shot.SpecificationsCaliber: 357 SIGGrains: 147Style: Hollow PointVelocity at Muzzle: 1225 FPSVelocity at 100 Yards: 1072 FPSVolume: 20 per Box