Each Weaver base is machined to the tightest tolerances for a custom fit. They are designed to fight the effects of recoil with a square-cut notch that precisely mates to the sturdy cross bolt in every Weaver detachable ring. – Fits: – BSA Models CF2 & Monarch LA 7mm 270 & 30-06 – Raptor Arms Model same as Remington 700 LA – Remington Models 40X Long Action 700 Long Action 725 Long Action