On Sun, 02 Sep 2012 14:48:13 -0400, wrote:

On Sun, 2 Sep 2012 05:58:26 -0400, "Stormin Mormon"
wrote:

Some country folks would use a .22 rimfire rifle, from about 50 feet, to
make the initial hole. 40 grain jacketed solid.

A .22 would not even dent that material. I doubt any pistol would hurt
it unless you have a "cop killer" bullet.
Maybe a .308? If you have an AP round it would be a clean hole.

I .357Mag, or better, would probably do a number on it.