Grumpy,
try to remove the dirt inside the two slots for the extractor and retainer cartridge beside the entrance of the chamber,.... and clean with solvent and oil the extractor and cartridge retainer on the face of bolt.
Perhaps the cartridge retainer is too hard?
P.S.
a gunner said me ..........
never put oil on fire pin
but scrape lead of a lead pencil with cutter
and sprinkle the pin with grafite powder that thus not created sludge.
I not oil the pin from 20 years, also because many years ago I put oil often in the bolt and it has happened to me to receive an incandescent oil sketch in the skillful eye
good luck
Edited by Massimo - Max (10/12/09 11:05 AM)
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M@dm@xSniper