The Winchester USA White Box .40 S&W 180-grain Flat Nose Full Metal Jacket (FMJ) Brass 50-round box is a high-grade centerfire handgun cartridge engineered specifically for target practice, range training, and high-volume marksmanship in semi-automatic pistols. A common friction point in .40 S&W platforms is inconsistent feed geometry and harsh recoil spikes, which can cause feed-ramp stoppages and slow down target re-acquisition during rapid-fire strings. Winchester resolves these operational challenges by combining a full-weight 180-grain flat-nose FMJ projectile with clean-burning propellants, delivering smooth feed-ramp transition, controlled subsonic recoil, and reliable cycling across compact and full-size handguns.
The primary technical advantage relies on the smooth, copper-jacketed flat-nose bullet design and precision assembly. By fully encasing the lead core in a hard copper jacket, the projectile resists deformation as it feeds from the magazine into the chamber, ensuring seamless cycling in semi-automatic pistols and pistol-caliber carbines (PCCs). Charged with clean-burning powders and non-corrosive Boxer primers, the cartridge maintains tight velocity consistency, minimizes bore fouling, and preserves long-term accuracy across multi-round firing strings.
Launching its heavy 180-grain target projectile at a manageable 1,020 FPS, this USA White Box load operates in a comfortable subsonic velocity window, generating a smooth, push-like recoil impulse for fast follow-up shots and accurate shot placement. Built using precision-drawn reloadable virgin brass cases, it ensures uniform chamber sealing, low expansion drag, and positive extraction after firing. It is an outstanding selection for range practice, tactical drills, and high-volume marksmen demanding field-proven performance.
Key Benefits
- Flat-Nose FMJ Bullet Profile: Smooth copper jacket eliminates lead fouling and promotes reliable feed-ramp engagement in semi-autos.
- 180-Grain Subsonic Ballistics: Operates at 1,020 FPS to deliver a predictable, controllable recoil impulse for faster target recovery.
- Clean-Burning Powder Formulation: Reduces carbon build-up in the barrel to extend usable intervals between gun cleanings.
- Precision Reloadable Virgin Brass: Quality brass cases ensure uniform chamber sealing, smooth extraction, and excellent reloadability.
Technical Specification
- Ballistics: .40 S&W | 1,020 FPS Muzzle Velocity | Subsonic Target/Range Ballistic Profile
- Projectile: 180 Grain | Full Metal Jacket (FMJ) | Flat Nose Profile | Lead Core | Copper Alloy Jacket
- Case/Primer: Precision-Drawn Virgin Reloadable Brass Case | Non-Corrosive Boxer Primed
- Logistics: 50 Rounds Per Box | Winchester USA White Box Series
- Dimensions: Standard .40 S&W Geometry | Semi-Auto Handgun & Pistol-Caliber Carbine Compatible | SKU: Q4238
- Application: Range Training, High-Volume Target Shooting, Plinking, and Firearm Functional Testing
- Standards: SAAMI Compliant | Winchester Factory Quality Control Benchmarks
Secure consistent training performance with a proven .40 S&W load backed by decades of manufacturing control—SMKW remains a trusted source for dependable ammunition supply.
