Not stalking i know but.... i am a happy boy. I bought a lovely little sarasqetcha sxs .410 hammer gun a few weeks ago which seemed like a cheap deal until discovered it wouldn't extract or close due to tight chambers. I was told by a gunsmith who had a look at it that the chambers erode and create a ring at the end of the brass which could occasionally be polished out but usually required sleaving which in this case wouldn't be viable. Gutted. still usable but a shame its a cracking little gun.
Anyway i had another good look at it tonight and after 15 minutes careful polishing and tweaking the extractor mech i've got it working flawlessly.