Federal's marriage of the Barnes TSX bullet with the .300 Win Mag creates something special in this 165-grain load. The all-copper construction bucks the traditional lead-core trend, delivering match-grade accuracy with devastating terminal performance. At 3050 fps, this lighter bullet design cuts through wind like a laser while maintaining enough punch to deliver 3408 ft-lbs of energy on target. The copper construction means you're not just buying ammunition – you're investing in performance that's legal in any hunting zone.

For mountain hunters counting every ounce in their pack, this 165-grain load makes perfect sense. The lighter bullet weight means less recoil fatigue during practice sessions, while the TSX's renowned expansion characteristics ensure you're not sacrificing terminal performance. Four razor-sharp petals open reliably on impact, creating large wound channels while the bullet drives deep – often exiting on quartering shots that would stop lesser projectiles. This isn't just about power; it's about precision when it matters most.

Think of this load as your secret weapon for those heart-pounding moments when everything has to go right. Whether you're glassing muleys across steep canyons or tracking elk through dark timber, the flat trajectory and reliable expansion give you one less variable to worry about. The copper construction shrugs off the bone and muscle that would make lead cores stumble, while maintaining nearly 100% weight retention. When your tag, travel costs, and months of preparation are on the line, this is the insurance policy you want in your rifle.