No sabot with a conical bullet. Sabots are used when you want to shoot a smaller diameter bullet then the caliber of a rifle. A conical bullet does not require a sabot. I am guessing your shooting a .50 caliber. The No Excuses come in at .503 diameter. They are a slip fit conical bullet. All you do is dump your powder charge and then put the conical down the bore onto the powder.
I shoot a lot of conical bullets out of my White rifles. Again, a slip fit design. And I can shoot a lot of rounds without swabbing the bore.