Hornady 423 Cal 400gr DGX-Bonded

Hornady 423 Cal 400gr DGX-Bonded

The Hornady 423 Cal 400gr DGX-Bonded is a heavyweight bullet component engineered for handloaders and dangerous-game hunters pursuing deep penetration, controlled expansion, and structural endurance in .423‑caliber and .416-class rifles. Weighing 400 gr with a .423‑inch diameter, the 423 Cal 400gr DGX-Bonded features Hornady’s DGX (Dangerous‑Game eXpanding) bonded-core design, ensuring over 90% weight retention and reliable terminal performance on thick-skinned game.

Featuring a polymer-tipped spire-point profile and secured bonded core, the 423 Cal 400gr DGX-Bonded achieves a high ballistic coefficient and straight-line flight suitable for heavy-game situations. When fired at typical velocities of 2,300–2,500 fps—common in cartridges like .416 Rigby or .416 Weatherby—the 423 Cal 400gr DGX-Bonded delivers flat trajectories and energy retention ideal for Cape buffalo, elk, and bear.

The bonded-core construction in the 423 Cal 400gr DGX-Bonded mechanically fuses the lead core to the jacket, preventing jacket-core separation on impact. This provides deep, uniform penetration and ethical terminal performance on dense tissue and bone. Hunters report that the 423 Cal 400gr DGX-Bonded produces straight wound channels with minimal deformation.

Stabilizing effectively in barrels with twist rates of 1:14 to 1:16, the 423 Cal 400gr DGX-Bonded feeds reliably in bolt-action, safari-style, and single-shot dangerous-game rifles. Its concentric jacket and polished bearing surface support consistent chambering and repeatable groupings. Handloaders appreciate the 423 Cal 400gr DGX-Bonded for its dependable point-of-impact and consistent cycling across load variations.

Manufactured at Hornady’s Grand Island, Nebraska facility, the Hornady 423 Cal 400gr DGX-Bonded is sold as a bullet-only component and requires compatible brass, powder, and primers. With rigorous quality control over tip alignment, bonding integrity, and weight tolerance, the 423 Cal 400gr DGX-Bonded remains a top-tier choice for dangerous-game hunters demanding bonded-core reliability, flat-shooting trajectory, and terminal effectiveness in heavy-caliber rifle applications.