This comes up regularly. Very few off the shelf semi-auto .22LR rifles exist that will compete with a good bolt action.
However, look a bit further than club experts and plinkers, and you'll see an awful lot of medals won with semi-autos, in comps that are equally well suited to a single shot or manual repeater.
A good quality barrel, matched with good quality ammo, on a 10/22 will shoot amazingly well. It all depends what discipline you intend to shoot. If it's just for plinking, a good semi-auto's more fun, and will shoot almost as well as a dedicated target rifle that might not be any use for any other disciplines you end up wanting to try.