[E.J.W.]

I just bought a sweet LW20 for my daughter to shoot. It preceded the LT20 model. It was a bit gummed up from not being cleaned since it was last shot some years ago. The problem was similar, low brass shells would not cycle the action. I disassembled the entire gun and gave it a real good cleaning, replaced the action spring, pistons and seal. It cycled with any shells after the cleaning but misfired with shallow primer hits once in a while. A new firing pin retractor spring fixed that. I've put about 10 boxes of shells through it at our home trap range. Not one problem.
Good luck
E.