personally Dondo if you're talking LOOSE American Pioneer Powder, go with the 3f grade. The 2f grade is much too coarse in texture for my liking. Some of it will hardly pour though the funnel of your measure. Also the finer grade should actually burn a little faster and cleaner if it behaves like the other powders. You probably will not notice the difference. I always get the 3f. Your Encore should handle it just fine. After all that's the rifle Jim Shockey is using with his Shockey Gold. Someone told me he uses the 3f grade powder too, butI forget who now.

Keep us posted with your results...