I have tried to blow up guns. They are hard to blow up with walls .1" thick.
The way hoop stress works is that it is proportional to inside diameter times pressure divided by wall thickness.
So the higher the pressure, the thicker the walls need to be.
So the larger the inside diameter, the thicker the walls need to be.
In general, rifles have wall thickness 5 or 10 times thicker than needed for pressure.
Handguns are sometimes right on the edge.
You may have a 357 mag with 0.050" chamber wall.
The reason we have thick walls in rifles is to make them heavy.
Some will tell you we need thick for stiffness, but skinny barrels well bedded to super heavy stocks are fairly accurate.
