so i went to John Chamber's closerange gunfighting class, and shot almost 400 rnds each day
end of day 1, my red dot had unzeroed it self, and the dot was all the way to the right when the sights lined up
so i went home, zerod it, and applied clear nail polish...
today i shot about 400 rnds, and i was shooting steel at 50 just fine, then lent the pistol off, and magically it was unzerod again??
any ideas, or do i gotta send this thing to trijicon?