I had a 210 I believe the 12 ga version. We had to mount the scope so that the top adjustment knob for elevation was on the left side of the gun and the side windage knob of the scope was on top instead of on the right side of the gun as you would normally mount it. So in other words we turned the scope 45 degrees counter clockwise so that the empty casings would not hit the windage knob when you bolted the gun.
