It's always worth giving it a go. Is it deciduous? Can't you leave it until autmumn beofre moving it?
Whenever yo decide to move it, make water it well at the moment, so that it is not stressed when you do move it. if you've got some time until you move it, slice the pade down in a cicule arounf the bush, as far out as you think you will be able to dig it. That will vut the routts and force the "inner" routs to start to make extra ones, which will help when you move it.
Pepare the area you are moving it to in advacne of you moving it. Did a good sized hole and dig in some blood, sih an dbone meal to the base of the hole, plus into the earth you will be back filing the hole with. If you have soem nice compast, use that to back fill too.
Try to dig the bush out and trasfer it as quickly as possible. if you#ve got an alo tarpaulin/blanket/thick plastic sheet, that will help to move the root ball. if not, you will need to try to lift it into a wheelbarrow.
Transplt it into the now lcation, backfill with the earth/compost, firm down and then water well.
Depending on what the bush is, it might also helpt o give it a light prune, so that it isn't having to "feed" so many leaves while it re-establshes its roots.
The most improtant thing to do it is to keep it watered after yuo move it.