julian Posted March 14, 2019 Report Share Posted March 14, 2019 Have 2 suomi coffin mags that jam very often while feeding the last 3 rounds As the follower changes direction as the mag gets narrower,the round jams between the follower and the side of the magazine Did disassembled and cleaned the magazines Using them on a M11 lage Thanks Julian in Orlando Quote Link to comment Share on other sites More sharing options...
mike todd Posted March 14, 2019 Report Share Posted March 14, 2019 JULIAN, you mentioned they were in a M11 w a LAG conversion. if the speed is over 600 rpm I would suspect that's the reason , there may be a slight amount of roughness not present in others that you could polish out. Quote Link to comment Share on other sites More sharing options...
DINK Posted March 15, 2019 Report Share Posted March 15, 2019 Over on uzitalk.com there is a MAC forum which includes a thread regarding newly-made springs for the coffin mags (Suomi coffin mags 2.0). Apparently there is a drive on to make another batch of new springs for these interesting magazines and it might be worth your while to get in on it. It is very common to have problems with the last round or two (or three) in a magazine if the magazine spring(s) are weak. Quote Link to comment Share on other sites More sharing options...
julian Posted March 15, 2019 Author Report Share Posted March 15, 2019 Thank you guys Appreciate the input and will check it out Quote Link to comment Share on other sites More sharing options...
mike todd Posted March 16, 2019 Report Share Posted March 16, 2019 JULIAN, GREAT ADVISE ABOVE! its always a good idea to have all the spares you can afford, and more important when these spl runs show up. I never had an issue with one as long as the lips were good. I smooth bored several swede k barrels using them with that killer steel bullet CZECH 9mm ! Quote Link to comment Share on other sites More sharing options...
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