Quote Originally Posted by one shot drop View Post
a mate of mine has a r-10 and he seems to be havin problems with it at 30 yards it groups well at 35 yards its allover the place and 50 i thyink its also good strange i thought it was he was filling it up to 200 bar to often and not hitting the sweet spot but he let the air run right down to 100 bar still the same i cant work it out

Get him to take it somewhere he can shoot loud and try it without the silencer and without the shroud, also try using a mates magazine, see if these things help.