My settings for the slug port were as follows Impact M3 caliber 22 tubes 70 cm First regulator 170 Second regulator 130 Macro 1 Micro 3.5 Line 4 Jsb re designed 25 1 in at 75 yard Jsb jambo 18.13 1.5 in at 75 yard Jsb 16g was better than 18.13 1 in at 75 yard