Yeah
Its not running good now
Its having FTE intermittently. Ive tried the gas setting every which way. It seems overgassed, even at the lowest setting. Ive tried using different ammo, chokes intermittently on about everything I tried, German surplus, Austrian surplus, Monarch steel.
What I finally believe is happening is the extractor is simply letting go of the casing during extraction. You can even see on the casings where its extracting hard or when it slips free. I thought perhaps at first this was due to lacquered steel case ammo I used. I cleaned the barrel very well with solvents and even copper remover. However that doesn't seem to be the case, perhaps there was a bur making function correct towards the beginning of everything that has now came loose opening the port up more.
I have double checked headspacing. Still looks good. Closes on go gauge, doesn't on no go. Casings look fine beyond where the extractor is marking up the rim.
Beyond perhaps cutting a second extractor spring and trying to jam in in there to increase tension, I do not know what to do. A new barrel with a smaller port would probably do the trick, but Im looking at exploring other options before going that direction.