There's a good article on the gun and cartridge in the current issue of Shooting Times.
Here's what S&W's website has to say:
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Specifications
SKU: 163460
Caliber: .460 S&W Magnum®
Capacity: 5
Barrel Length: 8-3/8" (7-3/8" + 1" Compensator)
Front Sight: Gold Bead Black Patridge and HI-VIZ. Green Dot Interchangeable
Rear Sight: Adjustable Black Blade
Firing System: N/A
Grip: Rubber Grip
Trigger: N/A
Hammer: N/A
External Safety: N/A
Frame: X-Frame
Finish: Satin Stainless
Overall length: N/A
Material: Stainless Steel
Weight Empty: 73.0 ounces
Other Features
Removable, Interchangeable Compensator
Other Features
2330 FPS/200 Grain! The Highest Velocity Revolver in the World
2400 ft/lbs! The Most Powerful .45 Caliber Revolver in the World
If You Zero its Sights at 200 Yards, You Will Bag Your Buck with a Center Hold. 0-250 Yards with No Hold Over! Just Center It and Fire. The 460XVR will Do The Rest
Gain Twist Rifled Barrel for Superb Accuracy
Lighter Loads That The 460 Will Also Fire Include .45 Colt and .454 Casull
Incredibly Low Perceived Recoil For All Loads