6 mm ARC (bolt action rifles only) Load Data & Reloading Guide

The 6 mm Advanced Rifle Cartridge (ARC) is a relatively new caliber introduced by Hornady in 2020. Designed to maximize performance in the AR-15 platform, the 6 mm ARC has also garnered attention from bolt action rifle enthusiasts for its impressive ballistics and versatility. Utilizing a parent case based on a 6.5 Grendel, the 6 mm ARC provides the efficiency of a larger cartridge without the associated recoil. Its introduction aimed at providing a modern solution for a variety of shooting needs, from tactical applications to precision sports and hunting.

With a bullet diameter of 6.18 mm and a case length of 38.7 mm, the 6 mm ARC offers a balance between case capacity and overall compact size. The cartridge can handle relatively high pressures, up to approximately 52,000 psi. This pressure allowance, combined with efficient case design, enables it to propel bullets with exceptional speed and energy. Reloaders appreciate the technical merit of this cartridge, as it maintains consistent performance with various powder charges and bullet weights.

Ballistically, the 6 mm ARC excels with its capacity to fire bullets typically ranging from 87 to 108 grains. The higher ballistic coefficient of these projectiles translates into flatter trajectories and improved wind bucking capabilities. This makes the cartridge especially suitable for long-range shooting disciplines and competitive settings, where precision is paramount. In hunting applications, the 6 mm ARC is suitable for medium game, such as deer and antelope, offering sufficient power and accuracy for clean ethical shots.

For reloaders, the 6 mm ARC presents specific advantages. Its moderate case size and efficient powder usage lead to lower consumption of reloading components without sacrificing performance. Furthermore, the versatility in bullet selection allows reloaders to tailor loads for specific needs, whether that be precision target shooting or various hunting scenarios. This adaptability, combined with its manageable recoil and impressive accuracy, makes the 6 mm ARC a popular choice among reloaders looking for a do-it-all cartridge for bolt action rifles.