I have a Diana Bandit which I quite enjoy plinking with. I recently purchased some good quality pellets (RWS R10 Match and Meisterkugeln) but I found they didn't shoot any better than the cheap Crossman flat nose. I was shooting in the basement with a good solid rest. At 10 yards they were around an inch for 9 shots. I was wondering if anyone has some suggestions to improve accuracy. I was thinking maybe a regulator but there may some less expensive alternative. TC