Shooting off hand and then standing with the help of a sticks, i wouldn't have much of a chance. I would never aim for the heart; a center of chest hold is what i would have to do. My best chance would be to use my Accura with a 3-9 ultralight Leupold mounted. The cross hair is set for poi at 100 yard when using 260g Harvester PT bullet. The sabot would be a short black, and the powder would be 115g BH, ignited by a w209 primer. At 200 yard, i would set the scope at about 7 1/2 power, and use the second dot to aim at the center of chest. If i could somehow manage to do my part, i would shoot a lot of twos at both 100 & 200 yard, because the rifle is certainly able.