Stopped at Wally World tonight and saw they had some 45 acp lead round nose cartridges in the showcase. I pointed them out to the clerk and said I was surprised to see them. We got to talking and he said he had just recently bought a Rock Island 1911. When I asked if he had shot any of the lead round nose to save any money he said there was no way he was shooting them in his 1911. I asked if it was because of a leading problem. He told me leading wasn't the problem. The problem was that he had a 1911 pistol and 45 acp ammo was not designed to shoot in a 1911. Only cartridges marked 1911 would work. 45 acp would work fine in any other .45 acp pistol just not 1911's. I thought he was joking at first but it didn't take long to realize he was dead serious.