Thread: Putting vent rib on a shotgun barrel?

Is there anyone out there who would have the skill to make up and fit a vent rib for my A5 20g ?looking down the barrel now the bead is only just.visible and it tends to shoot really high,looking to get the young fella(10) started this season and don’t want him put off by missing too much.full length rib seems to be the only solution for the old girl..was my long departed dads gun that he cut down for me when I was a young fella so kind of a family earldom,and fits the boy well except for the Beas issue. Thanks