I have used Dead Center sabots (orange) and Shockwave sabots (blue) in .50 caliber using .40 caliber bullets. The heavier petals of the .40/.50 sabots are designed to break away from the base. Sometimes, all four petals will be missing and other times only 2 or 3 petals will be missing. It definitely doesn't hinder accuracy as the .40/.50 Shockwave 200 grainers are extremely accurate out of my Omega.