Federal Ammunition Premium ammunition in .300 Winchester Magnum (part no. P300WR) loads a 165-grain Barnes Triple-Shock X (TSX) bullet, a proven all-copper hollow point that groups tightly at long range and delivers consistent, large-diameter expansion. Federal starts every Premium load with the finest primers and clean-burning propellants, then houses this one in nickel-plated brass that resists corrosion and aids smooth extraction. The TSX’s monolithic design retains nearly 100 percent of its weight on impact to penetrate deep, and its grooved shank minimizes barrel fouling while improving accuracy. For hunters who want the flatter trajectory of a lighter lead-free bullet, this rifle ammunition is built for exactly that.

Key Specifications

• The chambering is .300 Winchester Magnum, a flat-shooting magnum built for long-range big game.
• The bullet weighs 165 grains, a lighter weight that trades a little mass for extra velocity.
• The bullet is a Barnes Triple-Shock X (TSX), an all-copper, hollow-point design.
• On impact the bullet delivers consistent, large-diameter expansion while retaining nearly 100 percent of its weight.
• A grooved shank minimizes barrel fouling and improves accuracy compared to a smooth-shank monolithic bullet.
• The case is nickel-plated brass, resisting corrosion and aiding smooth extraction.
• Cost runs about $3.14 per round, in line with premium all-copper rifle ammunition.
• Each box holds 20 rounds, enough to confirm zero and still hunt the season.
• Ten boxes ship per case, letting hunters buy by the case for the best per-round value.

Frequently Asked Questions

How does the 165gr TSX compare to the 180gr loading? The 165-grain bullet trades a little weight for a flatter trajectory and higher velocity, while both use the same all-copper Triple-Shock X design.

Is Barnes TSX a lead-free bullet? Yes, it is a monolithic all-copper design, making it a lead-free option for hunters who need nontraditional-bullet compliance.

Buy Federal Premium .300 Win Mag TSX 165gr

Deep, reliable penetration from an all-copper bullet is exactly what the Triple-Shock X was engineered to deliver, hunt after hunt. Order from our Lubbock, Texas gun shop and it ships fast to your door.