XXL Reloading
Hornady 139gr CX reloading bullet

.284 | 139gr | Hornady CX

Our reloading data for the .284 | 139gr | Hornady CX bullet covers a total of 24 suitable calibers and 1000 load recipes

The Hornady CX bullet is a premium, lead-free projectile designed for superior performance in hunting applications. Featuring a sleek, aerodynamic profile with a heat shield tip, the CX ensures flat trajectories and excellent accuracy. Its tough copper alloy construction maximizes weight retention and controlled expansion, making it ideal for ethically harvesting big game, including deer, elk, and antelope. The CX bullet's environmentally friendly design also meets regulations for lead-free hunting zones.

About this bullet

.284 | 139gr | Hornady CX is a bullet made by Hornady. At 139 gr (9.0 g) and a diameter of 0.284'' (7.21 mm) it suits handloads where bullet weight and barrel length have to be matched carefully. Its G1 ballistic coefficient of 0.429 drives velocity retention and wind drift downrange — higher values mean a flatter trajectory at distance. A twist rate of 1:7.5 is recommended for stable flight; slower twists can under-stabilise this bullet. We currently list 1000 load recipes across 24 calibers for this bullet.

Most popular calibers for this bullet

CaliberLoad recipes
7 mm-08 Rem.344
7 x 72 R260
7 mm PRC136
7 x 57 R107
7-.300 Norma Mag.105

Load data for .284 | 139gr | Hornady CX bullet is available in the following calibers:

Safety notes

All load data is reference data only. Always start at the minimum charge and work up in small steps while watching for pressure signs. Never exceed the maximum charge published by the powder or bullet manufacturer.