Yes, 6000 rounds on the same spring. I have changed the recoil spring one time, but all the other springs are original.[b said:Quote[/b] (Quack @ Nov. 02 2002,9:36)]NM_P99, you have 6000rds on the same spring? the spring may be quite softer than a new one. also i saw that you were using a 5.5#, which would make less of a difference.