The Weatherby .280 Ackley Improved 150gr Swift Scirocco is a premium bonded hunting load from Weatherby (Weatherby part no. F280A150SCO). Weatherby loads it with the Swift Scirocco, a bonded bullet with a signature black tip that the maker designed for hunting and long-range efficiency. The 150-grain bullet leaves the muzzle at 2925 feet per second and carries 2849 foot-pounds of energy, with a G1 ballistic coefficient of .515. Its pure copper jacket is progressively tapered to control expansion across a wide range of velocities, and a long driving band improves rotational stability. Each box holds 20 rounds for hunters running a .280 Ackley Improved rifle.

Key Specifications

• Chambering is .280 Ackley Improved, so match it to the cartridge marked on your rifle.
• Bullet weight is 150 grains, the weight Weatherby loads behind the Swift Scirocco in this cartridge.
• The bullet is the Swift Scirocco, a bonded hunting bullet with a signature black polymer tip.
• The jacket and core are joined with Swift bonding technology, and the pure copper jacket is progressively tapered to control expansion.
• The nose is an advanced secant ogive profile, which the maker says gives a high ballistic coefficient and a flat trajectory.
• Bullet diameter is .284 inch (7.2mm), the figure Weatherby publishes for this cartridge line.
• Muzzle velocity is 2925 feet per second, from Weatherby’s published ballistics table for this bullet.
• Muzzle energy is 2849 foot-pounds, listed in the same table.
• The G1 ballistic coefficient is .515, as published for the 150-grain Scirocco.
• Each box holds 20 rounds.

Frequently Asked Questions

What is the Swift Scirocco bullet? It is a bonded bullet with Swift’s signature black tips, designed for hunting and long-range efficiency. The jacket and core are bonded together, and a long driving band improves rotational stability.

What velocities does Weatherby publish for this load? Weatherby’s table lists 2925 feet per second at the muzzle, 2744 at 100 yards, 2570 at 200 yards, 2402 at 300 yards, 2241 at 400 yards and 2086 at 500 yards.

What trajectory does the published data show? Weatherby’s trajectory table lists +3.9 inches at 100 yards, +4.6 inches at 200 yards, 0.0 inches at 300 yards, -10.6 inches at 400 yards and -28.1 inches at 500 yards.

Buy the Weatherby .280 Ackley Improved 150gr Swift Scirocco Rifle Ammunition, 20-Round Box

A bonded Scirocco is a sound hunting choice for the .280 Ackley Improved, and Weatherby publishes full ballistics for it. Browse the rest of our rifle ammunition, and we will ship your order from our Lubbock, Texas gun shop with fast, insured delivery.