Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Speer Gold Dot 40 S&W 180gr bonded jacketed hollow point represents three decades of refinement in barrier-blind defensive handgun ammunition. Speer developed the Uni-Cor bonding process in the early 1990s, electrochemically fusing jacket to core one molecule at a time — a manufacturing approach that eliminates the core-jacket separation responsible for hollow point failures in real-world defensive encounters. You’re loading a round that maintains structural integrity through barriers that cause conventional jacketed hollow points to shed their jackets and tumble. Federal law enforcement agencies, municipal police departments, and state patrol units have logged hundreds of documented deployments with Gold Dot loads across all major service calibers. The 40 S&W 180-grain configuration delivers 420 foot-pounds of muzzle energy at 1025 feet per second from a four-inch barrel — velocity sufficient to initiate expansion in 10% ballistic gelatin while retaining enough momentum to reach FBI protocol minimum penetration depths of 12 inches after passing through intermediate barriers.
Load Profile
Speer machines each Gold Dot projectile from a drawn copper cup, then electroplates additional jacket material onto the lead core while it’s still in the forming die. The result: a jacket that cannot separate from the core under hydraulic shock. Nickel-plated brass cases reduce friction during feeding cycles in Glock 22, Smith & Wesson M&P40, and SIG P229 platforms — the three most common 40 S&W duty guns in American law enforcement. CCI primers deliver reliable ignition across temperature extremes from subzero winter carry to summer vehicle storage. Boxer-primed cases reload cleanly; expect four to six reload cycles before primer pockets loosen in once-fired Speer brass.
The Numbers
| Spec | Value |
|---|---|
| Caliber | 40 S&W |
| Bullet weight | 180 grains |
| Bullet type | Bonded Jacketed Hollow Point (Speer Gold Dot) |
| Muzzle velocity | 1025 fps |
| Muzzle energy | 420 ft-lbs |
| Rounds per box | 20 |
| Case | Nickel-plated brass |
| Primer | Boxer, CCI |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Self-defense, duty carry |
| Manufacturer | Speer (United States) |
The 180-grain bullet weight sits at the heavy end of the 40 S&W spectrum — slower than 155gr and 165gr loads, but carrying more momentum through barriers. Penetration in calibrated 10% gelatin typically reaches 14-16 inches after passing through four layers of denim, with expanded diameter measuring 0.60-0.65 inches. Browse our full selection of 40 cal ammo for training ball and additional defensive options.
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.
- Observe the four universal firearms safety rules at all times: treat every firearm as loaded, never point at anything you’re not willing to destroy, keep your finger off the trigger until ready to fire, know your target and what lies beyond it.
- Verify current federal, state, and local laws governing ammunition purchase, possession, and transport in your jurisdiction before ordering.
- This ammunition contains lead components. Per California Proposition 65, exposure to lead during handling or firing can cause cancer and reproductive harm. Wash hands after handling ammunition and discharge residue.
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