I have a 870 Series Express 2 3/4, 3 inch barrel as well. Very good gun. Knock down power? Oh ya. I would say very good knock down power especially within a hundred yards. My uncle took a 11 pointer 2 years ago (Slug) with the same type of gun just over 100 yds. Dropped him dead where he stood. Cant go wrong with the Remingtons. Very good and reliable guns. It is good for duck and goose hunting as well. I just got this gun not too long ago and it came with both barrels for a pretty good price. I like it a lot.

Starrman

Ron Starr