Weatherby Select Plus .300 Weatherby Magnum 180-Grain Sierra Tipped GameKing Ammo (brand part no. S300180TGK) pairs Roy Weatherby’s ultra-high-velocity .300 Wby Mag cartridge with Sierra’s proven Tipped GameKing hunting bullet. Weatherby loads this round to a blistering 3,175 fps at the muzzle, giving the polymer-tipped, boat-tail bullet a flat trajectory and reliable expansion on medium-to-large game at extended ranges. Brought to market in 1945, the .300 Wby Mag remains one of the most versatile 30-caliber magnums available, and this Select Plus loading is built for hunters who want match-grade consistency without stepping down to a lighter bullet. Among our rifle ammunition, this load suits elk, mule deer, and other big-game hunters shooting a .300 Weatherby Magnum rifle at longer ranges.

Key Specifications

• The chambering is .300 Weatherby Magnum.
• The bullet weight is 180 grains.
• The bullet is a Sierra Tipped GameKing, a polymer-tipped boat-tail hunting bullet built for expansion and a flat trajectory.
• The bullet diameter is .308 inch (7.8mm), the standard 30-caliber bore diameter.
• The muzzle velocity is 3,175 fps.
• Each box holds 20 rounds.

Frequently Asked Questions

What makes the Tipped GameKing different from a standard soft point? The polymer tip initiates more consistent expansion on impact while its boat-tail design keeps the bullet flying flatter and truer at longer ranges than a flat-base bullet.

How many rounds come in this listing? This listing is a single 20-round box.

What game is this load suited for? The 180-grain weight and high velocity make it a strong choice for elk, mule deer, and other medium-to-large game at extended hunting ranges.

Buy Weatherby Select Plus .300 Wby Mag Ammo

A genuine 3,175 fps magnum load paired with Sierra’s trusted Tipped GameKing bullet, this Select Plus loading gives .300 Weatherby Magnum hunters serious reach on big game. Order it from our Lubbock, Texas gun shop and we’ll get it to you as soon as it’s ready to ship.