I have an early 90s style Jericho 941 thats been having issues since i purchased it recently this year. At least once per box I have been getting stovepipes and failures to eject from a range of 9mm loads from 115 to 147gr from various manufacturers. I've put around 600 rounds through it and I have even replaced the extractor and the spring with a more powerful wolff extractor spring. I've noticed spent shells landing at my feet, last spent round falling out of the magwell when I reload, and stovepipes in every direction ( up, down, forward and backwards ). I've had one or 2 failures to feed but the mag is old and beat up so i have 2 new ones on the way although i doubt it has anything to do with the FTE ( the gun has some wear and tear ). When I got it i did a detailed stripdown and clean and made sure to pay attention to under the extractor and spring and even gave a good cleaning to the mag. I keep it well oiled and have tried the rails with a few drops of oil to a light coating a grease. The gun cycles easily by hand and i dont feel any binding, there was no rust on it when i got it but it does have its dents and scratches and came with a broken decocker that I've repaired. I think the recoil spring could be part to blame but I'm not sure if it would be too stiff or too worn out. Also the recoil spring is the older captive style so I dont know of any good replacements for it. I'm frustrated because I wanted to run this gun in IDPA a few times and id like to salvage this gun instead to selling.
Here are notes from my last range trip:
remington 115gr
1 stovepipe / last round didnt eject / some/few weak ejection
lawman 115gr
1 stovepipe / 2 failures to eject last round / weak ejection
pmc bronze 115gr
3 stovepipes / very weak ejection
blazer brass 124gr
1 stovepipe / failure to eject last round / some weak ejection
winchester white box 147gr
1 stovepipe / failure to extract from barrel completely causing new round to jam into it / failure to eject / some weak ejection
lawman 147gr
stovepipe / failure to eject last round / failure to extract from barrel completely causing new round to jam into it / some weak ejection
http://imgur.com/a/TFpnd Some pictures of the insides