New Ultralight Arms Model 40 in 300 Winchester Magnum. The Model 40 is Forbes' largest action platform, intended for customers who want the maximum versatility in caliber options within the ultralight concept. In 300 Win Mag the Model 40 delivers the same sub-6-pound finished weight that defines the NULA line, with an action sized for the largest magnums. The Model 40 represents the ceiling of Forbes' weight-reduction engineering. Type: Rifle Action: Bolt-Action Caliber: 300 Winchester Magnum Capacity: 1 Year introduced: 1998, USA Weight: 67 oz Overall length: 45" Status: Active Intended use: hunting, dangerous game, mountain hunting