Still, if you're talking about a bullet, or even a shotgun blast, through a fuselage, it will not cause the loss of control you suggest.
You can see from the articles that I posted that even with a massive and sudden loss of cabin air, the weight is not a factor, nor is the thrust.
These planes weigh tens or hundred of thousands of pounds. The air inside simply does not have the mass to significantly overcome that inertia.
And if the decompression is explosive, as in those with whole sections of fuselage blown out, whatever thrust there is lasts for mere seconds.
If its Fromm a billet hole, it's minuscule.
Still, gunfire aboard a high flying, pressurized aircraft is not recommended unless absolutely necessary.
So rednecks can have their guns as carry ons.