I have owned several sightron scopes over the years. today I took off a S2 6.5-20 scope to sell the scope and liquidate some funds. I have the same identical scope I use for load development which has helped me shoot some very good groups way out there. the scope was mounted in talley lightweight rings which aren't the most heavy duty out there. I noticed the tube on the scope was actually dented from the rings. I had this same thing happen with an S1 3-9 scope a few years back. my point is I didn't over torque the screws, heck I would have stripped out the talley lightweights if I had. just wondering if any of you guys have seen dented tubes after you take the rings off your sightron and if the scope tubes are softer than others.