The Weatherby 6.5-300 WBY Mag 130gr Swift Scirocco load is a box of 20 rounds of 6.5-300 Weatherby Magnum hunting ammunition built on premium brass (Weatherby part no. F653130SCO). The 6.5-300 Weatherby Magnum (in production since 2016) was developed to take advantage of the extremely accurate 6.5mm bullet, and it is the 300 WBY case necked down from 30 caliber to 6.5mm. The Swift Scirocco is a bonded bullet with signature black tips, built for hunting and long-range efficiency, with a progressively tapered pure copper jacket that controls expansion and is bonded to the core. Weatherby publishes a muzzle velocity of 3,425 fps and 3,386 ft-lbs of muzzle energy for this 130-grain load, still carrying 2,576 fps at 500 yards. Weatherby lists a 2016 production start for the cartridge.

Key Specifications

• The cartridge is 6.5-300 Weatherby Magnum, the 300 Weatherby Magnum case necked down from 30 caliber to 6.5mm.
• Bullet weight is 130 grains, the load weight Weatherby lists for this part number.
• The bullet is the Swift Scirocco, and bonding the jacket to the core is how it holds together on impact.
• Bullet diameter is .264 inch (6.5mm), the size Weatherby lists for this cartridge.
• The G1 ballistic coefficient is .571, a measure of how well the bullet resists drag as it flies.
• Muzzle velocity is 3,425 fps from Weatherby published ballistics, which sets the flatness of the trajectory.
• Muzzle energy is 3,386 ft-lbs, the starting point for the energy the bullet delivers downrange.
• Velocity at 500 yards is 2,576 fps, showing how much speed the bullet retains at long range.
• Maximum case length is 2.825 inches, the dimension that governs which chamber the round fits.
• The case is premium brass, which Weatherby pairs with carefully selected powder and primers for consistent ignition.

Frequently Asked Questions

What bullet does this 6.5-300 WBY Mag load use? It uses a 130-grain Swift Scirocco. The Swift Scirocco is a bonded bullet with signature black tips, built for hunting and long-range efficiency, with a progressively tapered pure copper jacket that controls expansion and is bonded to the core.

What velocity and energy does this load publish? Weatherby lists 3,425 fps and 3,386 ft-lbs at the muzzle, falling to 3,064 fps and 2,711 ft-lbs at 200 yards and 2,576 fps and 1,915 ft-lbs at 500 yards.

What is the 6.5-300 WBY Mag cartridge? The 6.5-300 Weatherby Magnum (in production since 2016) was developed to take advantage of the extremely accurate 6.5mm bullet, and it is the 300 WBY case necked down from 30 caliber to 6.5mm. Weatherby lists a 2016 production start for the cartridge.

Buy the Weatherby 6.5-300 WBY Mag 130gr Swift Scirocco Rifle Ammunition, 20-Round Box

Weatherby builds this 6.5-300 WBY Mag load around a 130-grain Swift Scirocco so the cartridge performs the way its design intends. Order it from Weatherby‘s selection of rifle ammunition through our Lubbock, Texas gun shop for fast, insured shipping.