I'm pretty anal about removing & remounting my thermal despite checking/confirming RTZ.i was told, if you remove the scope from the gun it has to go back on in the same spot to return to zero.
+1I'm pretty anal about removing & remounting my thermal despite checking/confirming RTZ.
I do mark the picatinny rails to ensure they go in the same slots, & put forward pressure on the scope when tightening them down.