Let's try a round of Hornady 95 gr. JHP/XTP.

It penetrated only two jugs, and dented the third jug, but expanded well.

Maybe if we want more penetration, we ought to use Ball.

So, let's give it a try.

The Ball ammo penetrated 5 jugs before stopping.

Just as expected.

The biggest "small gun" I will test is a .38 Special snub nose 2 inch.

First a round of Winchester 125 gr. +P JHP.

It penetrated 4 jugs, but only expanded a little.

How about a 148 grain Wadcutter?

This is often recommended by folks on the Tactical Forums as a good .38 Special round out of a snub nose revolver.

It penetrated 4 jugs with very little upset.