Leupold cross-slot mounting systems incorporate Weaver-style rings that are compatible with both weaver and picatinny rails. We offer 1-piece and 2-piece bases tailored for a wide range of popular rifles. This specific model is designed to fit Winchester 70 rifles and is well-suited for standard to magnum calibers. Our cross-slot mounts encompass several series, including the PRW2, QRW2, LRW and open range, all of which provide unparalleled durability and strength. PRW2 mounts are particularly popular as many rifles come equipped with weaver-style bases or cross-slot rails. QRW2 mounts are also designed for use with cross-slot bases and offer the same features as our QR mounts, ensuring accuracy within +/-1/4 MOA when removing and reinstalling your optic. The LRW series mounts offer rapid and effortless installation and offer a more traditional aesthetic. Conversely, the open range series is crafted from lightweight 6061-T6 aluminum and both variations are compatible with cross-slot bases. The connection between your scope and firearm is a critical component, which is why our mounts are engineered to be as rugged and dependable as the Leupold optics they secure. With an extensive range of mounting systems to choose from, you're guaranteed to find the perfect match for your firearm and shooting preferences. Crafted in the USA and backed by a lifetime guarantee of enduring performance even in the face of extreme conditions, Leupold mounts are a steadfast choice you can trust.