Superhunt
We are here to help fix the 50 yard, before moving over to the 100 yard.
If the thread-starter is 4" high at 50 and out of sight adjustment room, then that's why I suggested he call T/C for another set of front and rear sights.

Something is wrong with his sights at 50 yards, for no more adjustment room exists. His concern at 100 yards should be dealt with later. But odds are, if he gets the 50 yard issue fixed, the 100 yard issue won't be so outlandish.