Hornady 284 Cal 7mm 139gr CX
The Hornady 284 Cal 7mm 139gr CX is a premium monolithic bullet component tailored for handloaders who demand deep penetration, controlled expansion, and high precision in .284-caliber hunting rifles. Weighing 139 gr with a .284-inch diameter, the 284 Cal 7mm 139gr CX features Hornady’s all-copper CX (Copper eXpanding) construction, delivering over 95% weight retention and reliable performance under heavy-boned conditions.
The 284 Cal 7mm 139gr CX uses a Heat Shield® polymer tip and optimized boat-tail geometry to enhance flight stability and raise its ballistic coefficient. Featuring a secant ogive profile and Optimum Groove Geometry, the 284 Cal 7mm 139gr CX reduces drag and minimizes fouling, yielding flat trajectory and consistent grouping in cartridges like 7mm Remington Magnum and .284 Winchester.
With the monolithic CX design, which includes a mechanically secured copper core and jacket, the 284 Cal 7mm 139gr CX resists jacket-core separation and delivers controlled expansion through heavy muscle. Hunters praise the 284 Cal 7mm 139gr CX for its ability to produce deep wound channels and ethical terminal results in elk, deer, and hog scenarios.
Designed for twist rates of 1:9 to 1:10, the 284 Cal 7mm 139gr CX stabilizes quickly and feeds reliably in bolt-action and lever-action hunting rifles. Its consistent bearing surface, jacket concentricity, and quality-controlled manufacturing ensure repeatable performance for handloaders using the 284 Cal 7mm 139gr CX in long-range and field situations.
Manufactured in Grand Island, Nebraska, the Hornady 284 Cal 7mm 139gr CX is sold as a bullet component only. Users must pair it with proper brass, powder, and primers. With strict quality control on tip alignment, jacket bonding, and groove geometry, the 284 Cal 7mm 139gr CX stands as a top-tier lead-free monolithic hunting bullet in the .284-caliber class.
Product Information
| Manufacturer | Hornady |
|---|---|
| Component Type | Rifle |
| Caliber | 284, 7mm |
| Grain | 139 |
| Diameter | 0.284 |
| Bullet Base | Boat Tail |
| Bullet Style | Polymer Tipped, Solid |
| Ballistic Coefficient (G1) | 0.429 |
| Product Line | CX |
| Purpose | Hunting |
| Lead-Free | Yes |
| Made in USA | Yes |
| Condition | New |
| Box Qty | 100 |
| Product Type | Bullets |

