RossM Posted January 12, 2014 Report Share Posted January 12, 2014 Got an old Franchi 520 Hunter which every now and again jams. Been using it on clays with 28grm carts. I've given it a good clean but it still starts to jam again after a few rounds have been through it. I think I've read somewhere that something inside can be switched round so it can cycle lighter cartridges, Does anyone know if this is true and if so how do I do it. I really like using the gun so would like to get it working properly. Quote Link to comment Share on other sites More sharing options...
Underdog Posted January 13, 2014 Report Share Posted January 13, 2014 The piston sleeve an be turned around yes. In the 20g one way is for mag loads and the other upto one ounce if I remember correct. Nice auto by the way.... U. Quote Link to comment Share on other sites More sharing options...
RossM Posted January 13, 2014 Author Report Share Posted January 13, 2014 Thanks Underdog, don't suppose you know which way round is which? Quote Link to comment Share on other sites More sharing options...
Underdog Posted January 13, 2014 Report Share Posted January 13, 2014 Can't remember really but with the bolt locked back it's not much to turn it around in the field if it starts acting up. U. Quote Link to comment Share on other sites More sharing options...
HDAV Posted January 13, 2014 Report Share Posted January 13, 2014 what length cases? some don't like 65/67mm try some 70mm Quote Link to comment Share on other sites More sharing options...
RossM Posted January 19, 2014 Author Report Share Posted January 19, 2014 Took it out today on clays following a good clean up. First pair it cycled nicely. She jammed mid way through the second pair! I've had a look at the piston sleeve and can't see it fitting back if I turned it round. Think the carts were 67mm which could be part of the problem. I'll give it another strip down and get some 70mms. Quote Link to comment Share on other sites More sharing options...
Underdog Posted January 20, 2014 Report Share Posted January 20, 2014 I think I may of made yet another mistake! I think it maybe a 720 that the piston is reversed.....will check and sorry! Can you at liest check the gas ports in the barrel are not clogged any.... Quote Link to comment Share on other sites More sharing options...
Underdog Posted January 20, 2014 Report Share Posted January 20, 2014 Yes sorry I did get confused and was thinking of the 720 (I had one of them). Alot of autos can just simply get gummed up! Powder gasses and particles can mix with any oils added to the bolt and receiver to form a sticky goo that come winter slows the bolt right down. Can you check that any of the grooves in the receiver are free of gunk? U. Quote Link to comment Share on other sites More sharing options...
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