I used to be able to purchase very heavy Merino wool socks from Cabelas. The socks were soft, thick, and did not shrink in the camp laundry process. Before my last trip I purchased some new socks from Cabelas and even though they were the same stock number they shrunk down several sizes when I washed them. I know Cabela's had made a significant change to the sock material as my original Cabela's socks that were washed in the same load did not shrink. My current socks are the heaviest Merino wool socks from Sheep Mountain that I purchased at the DSC show 3(?) years ago..
As noted above, I find the quality can vary even from the same manufacture. Therefore, I suggest washing them as you expect they will be done in camp and then wearing them for a long hike, over broken ground if possible; in your hunting boots to insure they meet your needs.
As a side note, it is probably just my feet but I could not get comfortable in Courtney boots but my Russells are very comfortable. I apply several light applications of Obenauf"s to the leather portion of the PH boots and they have required essentially no break in. The standard soles on the Russell PH boots are significantly softer, more flexible, and lighter than the Courtney's which makes them both quieter and shorter lived. If you chose Russell boots you will need to order the soles to match the terrain where you will be hunting.