Winchester W40SWST Silvertip 40 S&W 155gr JHP Ammo - 20 Rounds

The Winchester W40SWST Silvertip delivers proven hollow point performance in 40 S&W with a 155-grain jacketed hollow point bullet designed for controlled expansion. This premium defensive ammunition combines Winchester's time-tested Silvertip technology with consistent powder charges for reliable terminal ballistics.

What Makes This Different

The Silvertip jacket features Winchester's proprietary aluminum tip that initiates rapid expansion upon impact while the notched jacket ensures consistent mushrooming. Unlike standard ball ammunition, this hollow point design transfers maximum energy to the target while reducing over-penetration risks. The 155-grain bullet weight provides an optimal balance between velocity and stopping power in the 40 S&W platform.

Key Features

• 155-grain jacketed hollow point with aluminum Silvertip for controlled expansion
• Nickel-plated brass cases resist corrosion and ensure smooth feeding
• Notched jacket design promotes consistent mushrooming and energy transfer
• Premium powder charges deliver velocities around 1,205 fps from 4-inch barrels
• 20-round boxes provide convenient quantities for range testing and carry rotation
• Compatible with all 40 S&W firearms including Glock, Smith & Wesson, and SIG models
• Boxer-primed cases suitable for reloading applications

Field testing demonstrates reliable function across various 40 S&W platforms with consistent accuracy at defensive distances. The ammunition performs effectively in both compact carry pistols and full-size duty weapons. Temperature stability ensures consistent performance from -40°F to +140°F, making it suitable for year-round carry and storage.

Technical Specs

• Caliber: 40 Smith & Wesson (.40 S&W)
• Bullet Weight: 155 grains
• Bullet Type: Jacketed Hollow Point with Silvertip
• Muzzle Velocity: Approximately 1,205 fps (4-inch barrel)
• Muzzle Energy: Approximately 498 ft-lbs
• Case Material: Nickel-plated brass
• Primer Type: Boxer, non-corrosive
• Quantity: 20 rounds per box
• Manufacturer: Winchester Ammunition
• Country of Origin: United States

Winchester's quality control standards ensure each cartridge meets strict specifications for pressure and velocity consistency. The nickel-plated cases resist tarnishing during extended storage while providing the reliability expected from Winchester's premium ammunition lines.