I've had quite a few Bushies but only one with an accuracy problem - it had a loose barrel! This was a 20" flattop (Varmint type) so I pulled the barrel and made a match Spacegun out of it.
No fooling, the barrel wobbled side to side and went *clunk* when you did it, straight from the factory. Umbleevable!
Check your scope mounts first since many are of questionable virtue but if that checks OK, Send it back!
Redial