Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
The Underwood 38 Special +P 158 grain semi-wadcutter brings defensive revolver performance to snub-nose and service-frame platforms with a polymer-coated lead projectile that expands without lead fouling. Engineered for reliability in concealed-carry revolvers, this load pushes a soft-cast 158-grain semi-wadcutter to 1160 fps and 472 ft-lbs of muzzle energy, backed by flash-suppressed powder and nickel-plated brass cases. Federal and state law requires purchasers to be at least 18 years old for handgun ammunition — verify current shipping restrictions in your jurisdiction before ordering.
Built for the Box
Underwood manufactures this round with a soft-cast lead projectile engineered to expand on impact while resisting barrel leading through Black Cherry polymer coating. The coating — a thermally stable compound — withstands chamber pressures and temperatures that would strip traditional wax lubricants, preventing lead-to-bore contact across the length of the barrel. The 158-grain semi-wadcutter profile delivers a wide meplat for tissue disruption and controlled expansion without jacket separation. Nickel-plated brass cases resist tarnish during storage and cycling, improving feeding reliability in double-action revolvers and simplifying brass prep during reloading. Flash-suppressed powder maintains night vision if you fire in low light. Boxer primers and reloadable brass extend the service life of each case. The round is safe for suppressor use, though most defensive revolver applications involve unsuppressed platforms.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 38 Special +P |
| Bullet weight | 158 grains |
| Bullet type | Semi-Wadcutter (Black Cherry coated lead) |
| Muzzle velocity | 1160 fps |
| Muzzle energy | 472 ft-lbs |
| Rounds per box | 20 |
| Case | Nickel Plated Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Self Defense |
| Manufacturer | Underwood Ammo (USA) |
This load is built for self-defense applications in revolvers chambered for 38 Special +P — verify that your firearm is rated for +P pressures before use. For more defensive revolver loads and training ammunition, browse our full 38 Special Wadcutter Ammo inventory.
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; never point the muzzle at anything you are not willing to destroy.
- This product contains lead — handle with care and wash hands after range sessions. California Proposition 65 warning applies.
- Store ammunition away from moisture, heat, and children. Do not attempt to disassemble live rounds.
Reviews
There are no reviews yet.