jrkpilot, welcome to the MO Family, from here in west central Mo. We nee some more info on your problem, is the Marlin new to you, had it for years and problem just started, have you cleaned the chamber well before, has the problem always existed and now getting worse. Some pictures would help, if you can get them posted. If you are not familiar with Marlin takedown check the gunsmith/cleaning sections, there are videos and verbal instructions there. Gunsmith's screwdrivers to disassemble your Marlin, keeps the screws and finish in good shape. Take care, John.