Hi guys,I have an ATAC in .22 (sub 12 ft/lb) which I brought on an impulse several years ago. I also brought and fitted a GRT3 trigger as I'd read that it was a good replacement for the stock one. After several years of not making the time to use it I finally got it out and started trying to zero the scope.Today I had a target at 35yds but just couldn't get a consistent group of shots. The best I managed was 9/10 hitting the 14x14cm target card but by no means in a consistent group. After this the zero actually seemed to get worse and move around.The gun must have had 200-300 AA Diablo fields through it since I had it and another 100 H&N Barracuda Match today (brought yesterday as I read they are best for this gun). The scope is mounted tightly and I haven't found any loose screws elsewhere. I got my best results with a relatively loose hold supported on a table. I also tried using a bipod but if anything the results were worse.Reading the forums it seems that some people suspect the scope that comes with the gun is generally the problem. That said, watching some videos on YouTube there seem to be people getting much better results than I am.Any ideas on what might be wrong or what I can do to improve my results? I'm sure some of the inaccuracy is down to my technique but I'd have thought I should be able to consistently get 7-8/10 shots hit a 14x14cm target card while shooting off a table?Very frustrating afternoon. I'm considering buying a hawke scope and mounts but if the gun is just no good then thats just throwing good money after bad. A half decent scope will cost almost what the ATAC package cost. Perhaps it's better to write this off and save that money towards a used PCP?