Hi, I have managed to get quite a tight group with my r10 at 25 yrds, but when i go out to 45 yards, instead of the shot just dropping vertically, it goes to the right about 1/4 to 1/2 a mil dot! What should i look out for? Could the barrel need a clean? Should i try different pellets? Do i need to remount the scope? Not really sure where to start? Cheers