RE: bullet drop from 100 to 200 yds
200 yards is a very long shoot for any ML. If you are required to use open sights, its even longer.
If you zero you gun at 100 yards drops will be well over 10" for just about any projectile.
The tables referred to above have zeros at 150 and 200 yards. Even zeroed at 150 yards the drop is enough that you would have to compensate for your aim.