Howdy Burch! Your name is mighty familiar. Got any kin in the Hartsville, SC area? Or anywhere in the South, for that matter . . .
I'm way up north now, but I hail from Texas, and the family has deep roots in Dixie.
I've fired a few Remington Sluggers in my NEF single, and they do quite well, as FLNT 4EVR has noted. Rifle sights would help, but set the bead at the top of the frame and start close 'til you know where they're landing.
Best wishes from the just-startin'-to-thaw west of Wisconsin!
db22