ABOUT S&W 649

But I've lately obtained a M&P 9mm which includes precisely the same problem with weak ejection. I have read that A few of these guns just "need to break in" and up to now I've fired around 250 rounds of ammo (many mfgs.It would not take that Significantly to carry out, just operate a brush and solvent in the chambers, forty cal brush for a .357 bo