Pat, thats what im using. A mossberg 500 rifled slug barrell. I got a red dot sight with the cantilever mount. Shooting Winchester BRI's. I know the gun is on, i tore up a paper plate with 3 different brands of slugs last monday. The BRI's shot the best for me. I think i simply understimated distance, should have aimed a tad higher then what i did. Had i known that he was as far out as what he really was i would not have even shot. I dont feel comfortable taking longer shots. I'll know for next time though.