So I had my first bout wih shooting at a distance. I was shooting a bone stock savage model 10 fp sr in .223 at 400 yards. I was getting consistent 6-8 inch groups. I fully understand that being a newbie to the long range shooting I prolly the biggest factor in my groups but was curious if this was as accurate as this rifle/round combo may be. Also my groups were 2 inches wide by 5-6 inches tall, in a rectangular shape. Is this my error?