Well Gents...I mounted the 6x42 on the 06 using the extended front base after dinner. I can live with the eye relief although with a heavy jacket on I will probably have to creep up the stock a bit. The overhang of the front base into the ejection port doesn't bother me to much, seems like it may work out after all.
I expect the same will be true for the 3.5-10x40 on the 300WM since the scope is longer which will compensate for the longer LOP. Thanks again for the ideas and input. I hope the Signatures will hold the scope put on the 300, we'll see.
Regards,
Josh