Yeah there are some much hotter loadings in the search I provided... If you do read the threads there is some very good info there. Like I said, you can load PP in a .45 hot enough to batter a gun to death. I'm not sayin you can't shoot the stuff, just that its hard on the gun to do it regulary. Both a decent 1911 and a Smith 3rd gen (assuming its not alloy frame) should handle PP at its upper most loadings, just not all the time. I run the hot stuff to test for function and accuracy, thats it, then I carry it...... I shoot my carry mags every now and then and put fresh ammo in em.

Same goes for the .380, both those should be fine guns for the load I listed...