Hornady Superformance .300 Win Mag 165 gr CX – 20rd

Hornady Superformance rifle ammunition in .300 Winchester Magnum packaged with 20 rounds per box. This load is listed at 165 grains and uses Hornady's Superformance progressive propellants to yield increased muzzle velocity while remaining within SAAMI pressure guidelines. The manufacturer describes broad compatibility with semi‑automatic, lever, and pump rifles.

Key Specifications

• The cartridge is .300 Winchester Magnum.
• The bullet weight is 165 grains.
• The product line is Superformance.
• Rounds per box are 20.
• Boxes per case are 10.
• Reported muzzle velocity is 3260 fps.
• Reported muzzle energy is 3893 ft'lb.
• Ballistic coefficient (G1) is .440.
• Sectional density is .248.
• Case material is Brass.

Designed for field use where consistent velocity and trajectory matter, this Superformance load is positioned for hunting and precision-focused shooting applications. The combination of Hornady's propellant technology and the marketed CX profile aims to deliver flatter trajectories and consistent performance across temperature ranges, making it suitable for long-range shot placement and energy retention on medium‑sized game. This round is supplied in reloadable brass cases and is intended for use in firearms chambered for .300 Winchester Magnum.