I've got a 1911 in 38 super with an interesting problem. It has one of the older barrels in it and shoots fine. I purchased a Sarco 38 super barrel and also a 9mm barrel for it, took it to my gunsmith to have them fitted. The problem is that neither barrel will feed! The nose of the bullet gets caught where the frame ramp meets the barrel ramp. My gunsmith says the fit is perfect, but they won't function. The frame is from a US issue 45acp. But, if the original 38 super barrel feeds, shouldn't the other two?