I recently acquired a Marlin model 99M1 and it will not load, I am looking for a manual and any knowledge about this piece, cannot find any info and it has sentamental value so I would like to restore it so I can pass it on to my son
actually i just found a thread in this forum just like yours--
and im quoting user c3shooter "Suggest you contact marlin- (marlingun.com) and see if they have a manual. Common problems to rimfires are: Action is cruddy and needs cleaning (22 RF ammo is pretty dirty) OR: Gun has been dry fired too much, and pin has put a burr on mouth of chamber (sign is a scratch mark on side of case when extracting) IF that is the problem, DO NOT REMOVE THE BURR- but I can tell you how to fix it- easily."
I have a 99m1. Mine is tube fed. If yours is the same the lifter ( not sure thats the proper term) could be dirty and that is causing your problem. When I first got mine it fed unreliably until I fully disassembled and cleaned it. Now it runs fine. By the way it really likes CCI minimags.