This is an interesting thing to learn, my brother is a gunsmith in Washington state and I check with him on firearms. He told me that he was told the Rock Island .45 is made of metal too soft for shooting all the time. I am very interested to find if others have found this out through experience or is this another urban/firearm legend. Now my brother did say it was probably okay for self-defense, just not shooting a few thousand rounds downrange on a weekly basis.