from Guns & Ammo:
New for 2007, Hornady Ammunition's .375 Ruger.
The .375 Ruger features a standard magnum bolt face, is reported as being the smoothest feeding magnum to date and will be available in 270-gr. SP, 300-gr. IB and 300-gr. FMJ.
"This cartridge is very exciting," said Holt, "it has a 30-06 length case, but its not a 30-06 case. You're getting more performance out of a 20-inch barrel with .375 Ruger than what you'd get with a .375 H&H out of a 24-inch barrel."