Leupold Backcountry Cross-Slot Base Features The Leupold Backcountry Cross-Slot Base is machined from aircraft grade aluminum and finished in matte black to resist glare and corrosion in field conditions. Its one-piece cross-slot design is built specifically for the Weatherby 307 long action ensuring a precise repeatable fit without gaps or flex at the mounting surface. The cross-slot pattern accepts Weaver style rings giving shooters the flexibility to select ring height and spacing to dial in proper eye relief and cheek weld. A built-in 20 MOA bias compensates for bullet drop at extended range extending the practical reach of a long-range hunting setup. At 6.3 inches long and just 1.85 ounces the base adds minimal weight to the rifle while still providing a rock-solid mounting platform. The single-piece construction improves rigidity over separate two-piece bases helping maintain zero through recoil and repeated handling in the field. Designed to pair directly with Leupold and compatible Weaver style rings the base simplifies the scope mounting process for Weatherby 307 owners. The Leupold Backcountry Cross-Slot Base is a purpose-built mounting solution for long-range Weatherby hunters for sale at GrabAGun. Leupold Backcountry Cross-Slot Base Specifications Manufacturer: Leupold Model: Backcountry Cross-Slot Base Compatible Hosts: Weatherby 307 Long Action Material: Aluminum Color: Matte Black Length: 6.3 Height: 0.25 MOA: 20 Pieces: 1 Weight: 1.85 oz Style: Weaver Available At: GrabAGun