Has anyone tried Noslers accubond 200 grain bullet for long range hunting? I am having a hard time getting Berger 190 vlds to group out of my 300 win mag. So I am thinking about using the accubond. I can get consistent 1" groups at 200 yd at 3080 fps. However I cannot get or find what the G7 BC for this bullet is to use in my ballistic program. I called Nosler and I was told that you have to maintain a minimum of 1800 fps to get full expansion. I do not expect to shoot at game (elk)beyond 800 yd. Velocities are very different at 800 yd using G1 verses G7 BC. I have read the book applied ballistic but it gives no formula to get the drag coaficient in order to get the form factor in order to compute the G7 BC. Any info or comments appreciated.