Yea everything is tight but I zero'd in last night at 25 yards and I could hit a drawing pin so I was happy. Then I had another go this morning with the same pellets and they were firing about 2 inches! to far left so I keept going until it was back down to 90 bar to see if that was the problem but they all grouped 2 inches left. There was no wind at all and my range is very enclosed too cheers for all the replies