Hornady 400 Cal 400gr DGX-Bonded

Hornady 400 Cal 400gr DGX‑Bonded

The Hornady 400 Cal 400gr DGX‑Bonded is a heavyweight bullet component engineered for handloaders seeking robust expansion, deep penetration, and structural integrity in large-game .400-caliber cartridges. Weighing 400gr with a .400-inch diameter, this DGX‑Bonded bullet uses Hornady’s swirl-fluted jacket and bonded core technology. The 400 Cal 400gr DGX‑Bonded design ensures controlled expansion and over 90% weight retention through heavy muscle and bone.

Designed for powerful rounds like .408 CheyTac, .416 Rem Mag, and .400 Legend, the Hornady 400 Cal 400gr DGX‑Bonded features a polymer tip, deep open-point cavity, and boattail profile. Its aerodynamic efficiency yields a G1 ballistic coefficient around 0.310, supporting flat trajectories and wind resistance at velocities of 2,300–2,500 fps. This makes the 400 Cal 400gr DGX‑Bonded ideal for extended-range stalking and heavy hunting scenarios.

The 400 Cal 400gr DGX‑Bonded stabilizes reliably in barrels with twist rates between 1:9 and 1:11. Its precision machined bearing surface, fluted jacket, and polymer tip help ensure consistent seating depth and repeatable rifle accuracy. Reloaders value the 400 Cal 400gr DGX‑Bonded for its cycling reliability and consistent group sizes across various .400-caliber platforms.

In the field, the Hornady 400 Cal 400gr DGX‑Bonded delivers deep wound channels with minimal fragmentation. Its bonded-core and swirl-fluted jacket prevent core-jacket separation under heavy impact, allowing for straight-line penetration and ethical terminal result on elk, moose, bear, and Cape buffalo. Hunters report that the 400 Cal 400gr DGX‑Bonded penetrates heavy bone and muscle while maintaining near-maximum weight.

Manufactured at Hornady’s Grand Island, Nebraska facility, each 400 Cal 400gr DGX‑Bonded bullet is sold as a component only. Reloaders must provide appropriate brass, powder, and primers. Hornady ensures tight tolerances in weight, concentricity, and tip alignment. The Hornady 400 Cal 400gr DGX‑Bonded stands out as a premium bonded-core big-game bullet, offering deep penetration, controlled expansion, and long-range reliability in .400-caliber magnum applications.