Actual tests with hand gun bullets don’t show any such effect on a pressurized cabin. The cabin would not even lose its pressure from a single hole because the pressurizers are already making up for much more leakage than that.
Fuselage ruptures do occur on occasion, but it’s the result of metal fatigue and corrosion, not catastrophic point events.
I'd be more worried about clipping an essential electrical cable, tagging a sensor, or 'FOD'ing an engine than blowing the fuselage open with a few shots. Not sure how well those turbines hold up to a few extra grains (135 or so) of metal...
Sure, the odds are relatively long, but when it comes to aviation, 'Murphy' was an optimist.