Search:

There is a lot of information on the net on this exact topic which is reason alone why many would just consider 1-2 moa to be acceptable and say and do nothing more. I wouldn't.
Whatever the group...

Photos!!! And a photo of some groups as well for good measure. [emoji23]

On your last question as long as you can take apart the rings the screw should just wind out using a scriber or something else pointed.
My Kimber shot about moa sometimes a bit over.
I'd think...