That's a good idea and certainly something to check. Any roughness or irregularity on the breech face is not good.

I hope S&W has your gun straightened out and that you will be fine with it from now on. The gun should work properly with good ammunition and with the factory mags. Avoid the cheap, off-brand ammunition (particularly anything with steel cases) and be mindful of your grip. Wilson mags are sort of the gold standard in 1911 magazines. If you decide to buy any more, you might try one of theirs. I hope you have good luck with your gun.