I just recently got a report from Double Tap Ammo company who is using my 200 gr WFN gas check bullet in their custom loaded 10MM ammo. The owner of DT told me that two of his customers each shot bison with it, and that it broke the shoulder and still penetrated well enough to take the bison down quickly!
I've never shot a 10MM but set up a friend with my 180 gr WFN some time ago. We didn't chronograph the load, but just loaded it to a max jacketed load from the manual. The flat trajectory and superb accuracy was amazing for an auto, and I thought at the time that it would make an excellent deer slayer for ranges to well beyond 100 yards. The above report says I was more than right. However, if my memory serves me right, the DT 200 gr is moving out as fast as my friends 180 grain stated manual speed.
Contact DT if interested in some of his ammo. Contact LBT if interested in the meanest bullets you can get for a 10MM, including the 40 S&W. I have not heard of one failure to feed from the WFN in any 10MM auto of any breed or chambering.