The Hornady BackCountry 357 Magnum ammunition delivers maximum terminal performance for hunters pursuing big game in demanding environments. This premium hunting load features a 165-grain GMX (Gilding Metal eXpanding) bullet engineered for deep penetration and reliable expansion across a wide range of impact velocities.
What Makes This Different
The GMX bullet construction sets this load apart from traditional lead-core hunting ammunition. The monolithic copper-alloy design retains 95% of its weight upon impact, creating devastating wound channels while maintaining structural integrity. Unlike conventional bullets that may fragment or shed weight, the GMX bullet tracks straight through tough hide, bone, and muscle tissue for consistent performance on medium to large game.Key Features
- 165-grain GMX monolithic copper bullet for maximum weight retention
- Optimized powder charge for consistent velocities in hunting revolvers
- Lead-free construction meets California and other lead-free hunting requirements
- Polymer tip initiates controlled expansion at impact velocities down to 1,600 fps
- Boat-tail design improves long-range ballistic coefficient
- Brass cases suitable for reloading with standard dies
- 25 rounds per box packaging for extended hunting trips
Technical Specs
- Caliber: .357 Magnum
- Bullet Weight: 165 grains
- Bullet Type: GMX (Gilding Metal eXpanding)
- Muzzle Velocity: Approximately 1,290 fps (4-inch barrel)
- Muzzle Energy: Approximately 610 ft-lbs
- Case Material: Reloadable brass
- Primer: Non-corrosive Boxer
- Rounds per Box: 25
- Manufactured: Grand Island, Nebraska
