Hi,my 1st proper post.I would like some help/advice please.Just purchased a 2nd hand brocock contour xl s6.I tested it f2f seemed fine, but on sunday on testing the gun, as i had changed to higher mounts and was rezeroing the pellets were flying all over the place.I noticed that it had been clipping baffles inside silencer so took silencer off and the results were not much better,still having odd groups.I have tested it again today and could get a couple of pellets, pellet on pellet,then they start flying around anything from 40mm out at 30yds.I am refilling back up after 30-40 shots to 190b