Don't beat yourself up over it. They are in the 'trade' and as such should know their trade! If they failed to spot a gem, then that's down to them. ...
Before I was a member on here. Whenever I had a airgun question that I needed an answer to.i googled the question and I nearly always was directed to...
Had a mk1 .22 I think it was about 80 shots per fill with a wide power curve so I just kept it in the sweet spot & about 20/30 shot. Very accurate. ...
I had to do that with a Challenger once, I used one of those really long thin screwdrivers and tapped it down, so it's the first thing I do now if I...
My last auction buy was like that, described as firing at about 250 fps it mysteriously locked up by the time I got to it. I now use a long pin punch...