Man you 've got all kind of problems.

Are you using the correct size patch for .50 cal. Try a smaller patch. You should not have to diassemble gun! Buy a patch puller. Screws into rod,has 2 little metal prongs that catch the patch and pull it out. I use it often to clean in the field. You better buy a bullet puller while your at it.

Now get that gun shootin and advise us.