I have been swabbing every shot, even though with Shockeys you're not supposed to have to do that. Even with swabbing every shot the suppied MMP sabot with the 200gr SW loads like a bear in my Optima Elite. I even started lubing my sabots with bore butter to help, but I really don't want to have to be doing that, and that may actually be fouling the bore up more doing that. I did try the Hornady 250gr HS/LD but they loaded way to easy and the accuracy was not there.