Reply To: Help! Need more power from my Gamo Urban
In my case with the Buccaneer, I just started at the factory setting and turned it in clockwise 1/2 turn at a time and tested the results. I found that any more than 2.5 full turns affected accuracy and efficiency noticeably. Your Urban will be tuned a little differently but doing this should be safe to do and not risk running out of thread. 2.5 turns in to give me a peak of just over 930 FPS with the 15.9 JSBs. I settled on about 2 full turns. Just remember to record any changes so you don’t lose your starting point.