Could the bb be damaged? It will probably be just as it enters the frame..so if it goes in a few turns, mark the thread against the frame with a sharpie, take it out and look there....i bet you have a damaged thread that is stopping it picking up with the frame thread.....
Often, just a small file is all thats needed to clear a damaged thread on the cup.
Or just get another bb as you said
Good luck. These things are bloody annoying!
Often, just a small file is all thats needed to clear a damaged thread on the cup.
Or just get another bb as you said
Good luck. These things are bloody annoying!