Obtain the tallest sight available. Target the rifle at 200 yds. File the front sight down till the rifle is zeroed. With common ball ammo, the rifle will then shoot to the sights at the ranges on the rear sight. This is about the simplest way to zero any military rifle for ball ammo. It eliminates having to repeatedly install/remove/install various front sights until one hits upon the one that will best work. Perhaps it will be close. Buy filing the front sight, POI can be adjusted to more precisely match POA. Sincerely. bruce.
" Unlike most conservatives, libs have no problem exploiting dead children and dancing on their graves."