Last reviewed: 2026-04-18 by Jake Terry, FFL07/SOT3, NRA-certified firearms instructor.
Winchester Big Bore 44 Magnum ammo 240 grain semi-jacketed hollow point bridges the gap between field and home — a load engineered for deep penetration and controlled expansion across hog, whitetail, and two-legged threats. The 44 Remington Magnum is a straight-walled magnum cartridge introduced in 1955, chambered predominantly in revolvers and lever-action carbines. This 240 grain SJHP load generates 1485 fps at the muzzle and 1175 ft-lbs of energy, placing it in the upper third of factory 44 Magnum offerings. Semi-jacketed hollow point construction delays petal opening until after initial tissue contact, promoting straighter wound tracks and deeper penetration than conventional JHPs. Winchester manufactures this load in the United States using brass cases, boxer primers, and non-corrosive propellant.
Load Profile
The semi-jacketed hollow point uses a copper cup drawn over the nose of a lead core, leaving the base exposed. Upon impact, hydraulic pressure forces the jacket to peel back in controlled petals while the heavy lead base continues forward. This design produces wider permanent cavities than hard-cast lead while maintaining the sectional density required to reach vitals on 200+ pound animals. Muzzle energy of 1175 ft-lbs exceeds the 1000 ft-lb threshold most states require for deer hunting, and the 240 grain weight stabilizes in standard 1:20 to 1:38 rifling twists found in 44 Magnum revolvers and carbines.
Specs at a Glance
| Spec | Value |
|---|---|
| Caliber | 44 Remington Magnum |
| Bullet weight | 240 Grains |
| Bullet type | Semi-Jacketed Hollow Point |
| Muzzle velocity | 1485 fps |
| Muzzle energy | 1175 ft-lbs |
| Rounds/box | 20 |
| Case | Brass |
| Primer | Boxer |
| Corrosive | No |
| Reloadable | Yes |
| Intended use | Self Defense, Hunting |
| Manufacturer | Winchester |
Brass cases accept large pistol primers and seat well with 240-296 grain cast or jacketed bullets for handloaders who want to tailor velocities to specific platforms. 44 Magnum ammo remains a viable choice for hunters in states with straight-wall cartridge restrictions and for armed citizens carrying large-frame revolvers in bear country or remote areas where threats may require deep penetration.
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.
- Always follow the four rules of firearm safety — review them here.
- Verify current federal, state, and local laws before purchasing or possessing ammunition in your jurisdiction.
- This product contains lead. Wash hands after handling. Pregnant women and children should avoid exposure. See California Proposition 65 warnings.
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