I have a single tune mostly used for 12ft/lb 16g plinking and pesting(on low settings), but if it's windy or I need to shoot at longer distances, with the turn of TP/HS knobs, I can go to approx 19 ft/lb with 18g, and approx 35ft/lb with 21g slug with same scope(adjust turrets for zero) and same 380mm Superior barrel.