I one hole grouped my unfettered mk 5 .177 meteor at 35 yards a few times. So literally through shooting 10,000 pellets and trying every mechanical assistance I could dream up ( homemade springer friendly bipods made of sponge, twine and hazel) I got that dog of a rifle on paper to shoot very consistently. Essentially I learnt marksmanship using that rifle and got close to the best from it I reckon.