Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Winchester White Box USA 40 S&W 165 grain full metal jacket flat nose round delivers consistent ballistics for range practice and volume training. Centerfire handgun ammunition in the 40 S&W cartridge combines moderate recoil with proven terminal performance in service pistols. This load pushes a 165-grain full metal jacket bullet to 1060 feet per second, generating 412 foot-pounds of muzzle energy. Designed for shooters who track ammunition costs per training session, the White Box line balances component quality with accessible pricing. Winchester loads this round in non-corrosive Boxer-primed brass cases, enabling reloaders to reclaim empties after each range trip.
Load Profile
The full metal jacket flat nose projectile features a flat meplat that ensures positive feeding in pistols with shallow feed ramps. At 1060 fps, this load sits in the middle of the 40 S&W velocity spectrum — faster than 180-grain offerings, slower than 135-grain defensive rounds. The 165-grain weight mirrors many duty loads, allowing shooters to train with recoil impulse and slide timing that approximate their carry ammunition. Brass cases measure to SAAMI specification, and the Boxer primer pocket accepts standard large pistol primers during the reloading process. Each fifty-round box ships in Winchester’s white cardboard packaging, stackable for bulk storage.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 40 S&W |
| Bullet weight | 165 grains |
| Bullet type | Full Metal Jacket (flat nose) |
| Muzzle velocity | 1060 fps |
| Muzzle energy | 412 ft-lbs |
| Rounds per box | 50 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Range & Target |
| Manufacturer | Winchester |
This load cycles reliably in Glock 22, Smith & Wesson M&P40, and SIG P229 pistols. Shooters running suppressed 40 S&W platforms will find the 1060 fps velocity remains supersonic, eliminating concerns about cycling subsonic loads through pistol actions tuned for full-power ammunition. For additional 40 cal ammo options, review our centerfire handgun inventory sorted by grain weight and bullet construction.
Safe Handling & Compliance
Federal law requires purchasers to be at least 18 years old for rifle and shotgun ammunition, and at least 21 for handgun ammunition. Ammunition cannot be shipped to certain states, counties, and cities — review our ammunition shipping restrictions before ordering. Store ammunition in a cool, dry location away from heat sources and out of reach of unauthorized users.
- Treat every firearm as if it is loaded. Keep muzzle pointed in a safe direction at all times. Keep finger off trigger until sights are on target and you have made the decision to fire. Be certain of your target, backstop, and what lies beyond.
- Verify current state and local ammunition purchase laws before ordering. Some jurisdictions impose background check requirements, purchase limits, or registration mandates on handgun ammunition.
- This product contains lead, a chemical known to the State of California to cause cancer and birth defects or other reproductive harm. Wash hands thoroughly after handling ammunition or cleaning firearms. Use adequate ventilation when shooting indoors.
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