Poodleshooter,The M77-MkII is controlled feed not push feed.
My "controlled feed" MkII allows me to manually drop a round in the chamber, and close the bolt over it. When it feeds, it pushes the round into the chamber. The rim of the case is not encased by the claw extractor or controlled by the bolt during feeding, even when magazine fed. If I rotate the rifle upside down and attempt to magazine feed a round, it falls out. That doesn't happen with a Mauser. I maintain that that M77MkII is a push feed rifle with a claw extractor.
I do stand corrected on the trigger issue.