This is a 2 3/4 12 ga with a about a 30" FC barrel its not the heavy duck.
most of the time the shotgun works well however about 1 in 5 shells will fail to extract ( low brass lead for target). As the gun is pumped the spent shell will stay stuck in the chamber and can be pried out with a knife blade. upon inspection I found that the brass on the left hand side is fire formed to the extractor cutout when viewed from the smart end of the gun. This looks like its forcing the extractor off the rim and also causing excessive friction when attempting to extract resulting in the shell remaining in the chamber.
Looking further into this the bolt does not appear to be fully locked into place. Even with a shell racked in one can use a thumb to slide the bolt back and forth about 1/32" this is probably allowing the shell to slide back out in some cases and a section of brass just beyond the rim is un supported.
There appears to be a system in place that would allow a threaded collar to be adjusted however im not sure how this adjustment should be carried out or if its even related to the problem perhaps there is another part I should be inspecting for wear.
Any ideas?
Thanks
most of the time the shotgun works well however about 1 in 5 shells will fail to extract ( low brass lead for target). As the gun is pumped the spent shell will stay stuck in the chamber and can be pried out with a knife blade. upon inspection I found that the brass on the left hand side is fire formed to the extractor cutout when viewed from the smart end of the gun. This looks like its forcing the extractor off the rim and also causing excessive friction when attempting to extract resulting in the shell remaining in the chamber.
Looking further into this the bolt does not appear to be fully locked into place. Even with a shell racked in one can use a thumb to slide the bolt back and forth about 1/32" this is probably allowing the shell to slide back out in some cases and a section of brass just beyond the rim is un supported.
There appears to be a system in place that would allow a threaded collar to be adjusted however im not sure how this adjustment should be carried out or if its even related to the problem perhaps there is another part I should be inspecting for wear.
Any ideas?
Thanks