Yes it depends on the ring manufacturer spec as they know how much torque it takes to make their rings hold the scope. It's not about the actual scope. The Razor II is strong enough that it could take the 20-25 in/lbs, which is about the highest I have heard of for ring caps. Most are between 15-20 in/lbs. I torque my Seekins ring caps to 20 in/lbs.