savages have extremely tight chambers very close to saami minimum if not right on the button for minimum spec. this is a great thing for accuracy. its one of the key reasons the current production saages are so accurate.
the downside is that it doesnt take much fouling in the chamber to make what your experiencing happen. i would say the bump is just coincidence and caused you to notice it happening. savage chambers must be cleaned much more frequently than other makes.
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