Talley Weatherby Model 307 Long Action 20 MOA Rifle Rail Mount Black. These Weatherby 307 Picatinny Rails are all designed and manufactured with precision to fit your firearm with the industry's tightest manufacturing tolerances. These Pic Rails provide a mounting platform for all optics mounts that have been designed in accordance with the MIL-STD-1913 Pic Rail specifications to include all Talley Picatinny scope mounts. Specifications for Talley Weatherby Model 307 Long Action Rifle Rail Mount: Manufacturer: Talley Color: Black Finish: Anodized Fabric/Material: Aluminum Cant: 20 MOA Gun Make: Weatherby Gun Model: Weatherby Model 307 Action Length: Long Action Gun Type: Rifle Length: 6.3 in Height: 0.412 in Weight: 1.8 oz Screw Spacing: 4.25 in Screw Size: 8-40 Package Contents: Talley Weatherby Model 307 Long Action Rifle Rail Mount Talley PLM8160ACI: Weatherby Model 307 Long Action 20 MOA Rifle Rail Mount Black