In theory it is very much possible. But there are many varibles beyond ones control in shooting sub-MOA groups at to 200yds and 300yds. To shoot sub-MOA groups at those ranges requires a good shooting rifle and a skilled and knowledgeble shooter. Most of the time when a rifle is capable of sub-MOA groups at 100yds, it' s the shooter who can' t duplicate it at 200yds and 300yds, not the rifle.

If you want a MOA or sub-MOA rifle out to 300yds, have it accurized by a good gunsmith, do extensive experimenting with various loads, bullet weights/brands/styles, maunfactures, etc., or even handload your own, and then practice at those ranges.