Merkel B4 over-under double rifle in .375 H&H Magnum with 23.6-inch barrels and upgraded wood and engraving over the B3. Type: Rifle Action: Break action double Caliber: .375 H&H Magnum Capacity: 2 Year introduced: 2010, Germany Weight: 118 oz Overall length: 40" Status: Active Intended use: Dangerous game / Big game hunting