Hello Forum,

I recently purchased a Burris Fast Fire 3 Mini Red Dot.  I have it mounted on top of my Millet TRS-1 scope, in front of the forward scope mount ring, using a GG&G Mini RDS ring mount (b-comp model w/o the b-comp).

Yesterday I tried it out at the range for the first time, attempting to zero it.  I was having problems with the elevation.  Going for a target at 50 yards my shots where going high even with the elevation cranked down as far as it will go.  Aiming for the center of the target I was not even on paper.  Using my scope as a reference point (pointing RDS at bull's eye then checking the scope) my crosshairs are below the target, just off the paper.

I am a bit surprised to be experiencing this problem as mounting a MRDS on top of a scope is pretty common practice these days.  I think that moving the RDS, mounting it further back towards the eye piece could help this issue?  I am reluctant to do so as I like the position it is currently in.

Has anyone else had an experience like this with the FastFire or similar?   Advice?  As I mentioned I am surprised that the elevation adjustment will not go down further, anyone have something to say about that?  Is it possible I got a lemon?

Thanks all for any help you can provide.

Best,
DEG

I got this figured out.  Had to tweak the adjustment screws a little.  Works great now!