First things first, check and then double check to see if you have the 6-48 or 8-40 screws.

First photo is a predator long action, savage varmint contour barrel, Sightron SIII 30mm tube with 42mm bell, on Medium height rings. Fits great for me.

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Next is a predator short action, remington sendero contour barrel, older model Sightron SII 1" tube with 42mm bell, on Low rings.

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