Well,i hunt with 00 buck for hunting in thick areas,i'v never shot slugs,i know their better at long range.I hunt with a scoped 243 for long range.I patterned with Winchester super x 3'' 00 buck at 40 yards with the full choke,it will keep all 15 pellets in a 12''circle.Your gun may prefer something different,even though they are the same gun.