Hornady Subsonic .338 ARC 307 gr Sub-X, 20rd Box

Description

Hornady Subsonic rifle ammunition in .338 ARC is loaded with a heavy 307‑grain Sub‑X bullet engineered for reliable performance at subsonic velocities. This load is built with quality brass cases and primers and is offered in 20‑round boxes (10 boxes per case). The Sub‑X design combines a lead core with a Flex Tip insert and a profile tuned to expand predictably at lower speeds, making it suited to precision target and match shooting as well as reduced‑report applications.

Components and powders are selected to promote consistency from lot to lot, and the product is manufactured to Hornady’s published specifications for the Subsonic line.

Key Specifications

• The cartridge is .338 ARC.
• The bullet weighs 307 grains.
• The bullet/line is Sub‑X (lead core with Flex Tip).
• The listed muzzle velocity is 1050 fps.
• The listed muzzle energy is 752 ft lbs.
• The ballistic coefficient is .375 (G1).
• The sectional density is .384.
• Each box contains 20 rounds.
• There are 10 boxes per case (200 rounds per case).
• The case material is brass.

This Subsonic .338 ARC load provides a heavy, stable projectile and consistent internal components for reduced‑velocity applications where controllable performance matters. Its design and component selection make it a practical choice for precision target work and applications where subsonic performance is preferred.