Sqweeler: Aaahhh.... you are a man after my own heart!
I have the exact same Remington 40-X in 22-250 with a Leupold 6.5x20 on it.
I have Hunted everything from Ground Squirrels, Prairie Dogs, Rock Chucks and Badgers on up to Coyotes and Antelope with mine.
I bought mine mail order from that outfit (Chesters?) in Ronkonkoma, New York - by any chance is that where you got your 40-X from them? I bought several 40X's from them over the years.
Let me know if that 40-X comes up for sale.
Hold into the wind
VarmintGuy