The first 2 times I shot my new 64F with factory iron sights I was fine (not good yet, but fine).
The 3rd time out I could not hit barn a barn door. Could not hit a 12" paper target at 50 ft! Put back in the bag and plinked with other guns.

So just now I go it out to stare at it and found rear factory sight moves all over the place with very little pressure. Windage of the back plate AND the riser move all overr. So just simple act of bagging the gun at the end of my 2nd time messed up the positions of the rear sight. Yuck.

This can't be normal. What have you folks found?