Here is a picture of one I built... This Panda has an Anshutz sized rail on top, not the Standard 3/8 dovetail Kelbly uses. This rail has 10 minutes engineered into it. It is longer than the action so I can move the scope forward for Prone. The rail is true picatinny spacing, I am unhappy with the trough that Brownells (EGW) has up the center, but Oh well, Next time I'll make my own Picatinny Rail stock.
Thanks Al... The fixture is nice.
Paul