If the Encore has a 26" or better bbl. I would agree . A shorter bbl. won't allow all of the powder to burn . I use 250 grain T/C JHP sabots with 100 grains of Pyrodex RS in a .54 caliber inline . The gun can take 120 grains , but a good chunk of it comes out of the muzzle of it's 24" bbl. , so I scaled back to 100 grains .