Last reviewed: 2026-04-17 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
For defensive shooters running 45 ACP +P-rated platforms, the Atomic Ammunition 45 ACP +P — a 185-grain bonded jacketed hollow point load — delivers 1225 feet per second muzzle velocity and 616 foot-pounds of energy at the muzzle. Atomic Ammunition manufactures this load in the United States with nickel-plated brass cases and non-corrosive Boxer primers, pairing lighter projectile weight with higher pressure to produce expansion-friendly velocities from both full-size 1911s and compact carry guns. Bonded construction keeps the jacket attached to the core during barrier penetration and tissue contact, reducing the risk of fragmentation that can limit wound channel depth.
Performance at a Glance
The 185-grain bonded jacketed hollow point achieves velocity through +P chamber pressure — SAAMI specification allows 23,000 psi for 45 ACP +P, compared to 21,000 psi for standard 45 ACP. That 2,000-psi increase pushes the lighter 185-grain projectile 100 to 150 fps faster than typical 230-grain standard-pressure loads. Atomic manufactures this ammunition in the United States and inspects each round before shipment.
| Spec | Value |
|---|---|
| Caliber | 45 ACP +P |
| Bullet weight | 185 Grains |
| Bullet type | Bonded Jacketed Hollow Point |
| Muzzle velocity | 1225 Feet Per Second |
| Muzzle energy | 616 Foot Pounds |
| Rounds/box | 50 Round |
| Case | Nickel Plated |
| Primer | Boxer |
| Corrosive | No |
| Intended use | Self Defense |
| Manufacturer | Atomic Ammunition |
Nickel-plated brass cases resist corrosion in humid carry environments and feed smoothly across most magazine geometries. The load is reloadable with Boxer primers, though defensive ammunition should be replaced after carry exposure to environmental stress. Browse the full 45 ACP ammo category for standard-pressure and +P options across multiple projectile weights and designs.
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.
- Confirm your firearm is rated for +P chamber pressure before firing this load — consult your owner’s manual or contact the manufacturer
- Verify current state and local ammunition restrictions before ordering — some jurisdictions limit hollow point ammunition or require permits
- Store ammunition in factory packaging in a climate-controlled environment — nickel-plated cases resist corrosion but prolonged humidity exposure can degrade primer compounds
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