I personally have trouble loading most Hornady Sabots for some reason. Now the Thompson Center Shockwave sabots load fine for the most part. If you really want to make sure, get some crushed rib sabots. I was shooting my CVA the other day and those are the only things I could get to go down the bore. And they shot real good too by the way. I was loading Hornady XTP's in them and it placed them down range just fine.