RE: holo sights
TT... I haven' t had any fog or rain problems with mine. I have one on a 12 gauge and one on a 20 and both have been great.
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TR... the dot inside the scope is supposed to move around when you move your head around. This is the whole purpose for the sight. When mounted on a shotgun, you need not worry about burying your cheek to the gun stock just right. Once sighted in, it doesn' t matter where inside the scope the red dot is. Just put the dot on the target and pull the trigger. You' ll hit right on.