Shotgun shooters also have the ability of several shots fired rapidly from a hot barrel.
HUGE difference vs what a ML can do. Then you have the large difference in the temps the powder creates and how fast it creates it. When you really think about it, the comparison is badly flawed.
Modern sabots should not be leaving anything in a barrel unless you get it way too hot and blow a sabot. That is a load of hogwash that CVA still pushes to sell Powerbelts.
https://cva.com/wp-content/uploads/2...2Rev-12-13.pdf
Unlike sabots, however, the PowerBelt™ bullet is easy to load and leaves no plastic residue to foul the barrel.
However, most sabots leave a heavy plastic residue in the bore requiring cleaning of the bore after every shot. This plastic residue along with the extremely tight fit of most sabots makes loading for quick follow-up shots very difficult.