I was sighting in my 270 with a new scope today and I am wondering if strapping down the gun to reduce (Kick) will improve my grouping? Currently, I rest the rifle on sandbags with the butt against my shoulder, resulting in 3" groups at 200 Yards with about 10 mph. breeze. The dis-atvantage I have noticed is the rifle will jump more than normal because of my loose grip. Any advice would be helpful. BB