I hunted for years before I bought my first 3.5" magnum with 2 3/4" 4x6 copper duplex loads and never did have one run off. I never shot past 30 and most were inside 30. I still don't shoot the heavy's. Win HV 3.5" 5 shot 2oz loads will flatten them out to 60yd with my setup so no sense in me spending any more money than I already do for heavy's