NOT KNOWN DETAILS ABOUT MODEL 60 S&W

But I've a short while ago acquired a M&P 9mm that has the same difficulty with weak ejection. I have read through that Some guns just "need to interrupt in" and thus far I've fired approximately 250 rounds of ammo (numerous mfgs.It won't get that much to complete, just run a brush and solvent to the chambers, forty cal brush for any .357 bore. I h