Shooter-2, 150 rounds is not enough to wear a barrel or bushing to sloppiness. No way, no how. My SA-35 is the same as far as a rather "relaxed" fit of barrel to slide when in battery. I did some measuring. It was this way the day I received it. I've owned a number of FN/Browning Hi Powers since the '60s. The FN/Brownings do have a better barrel to bushing fit than my SA-35. The SA-35 probably should not shoot worth a darn. But with several hundreds of rounds through mine, and shooting from the bench, I was able to shoot a 1 1/2" 5-shot group at 15 yards. Certainly not a great distance. But 15 yards is the distance both Colt and Wilson Combat use to demonstrate the accuracy of their pistols. So for a basic service type pistol, I guess I won't gripe too much about barrel fit or accuracy of my particular SA-35. Far more important to me, is that with a thousand rounds or so through mine, zero malfunctions...YMMV