The gun was clean for the beginning of the match, shot the prior stage, only 8 shotgun rounds, this stage was 4 slug shots then 12 shot loads at plates and poppers. The four slug shots and the next shotshell ran fine, the 6th shot cycled the gun fully but didn't pick up the next shell. These are full power field loads, as I said they always run in practice. I try to make it malf, it'll run even if I shoot it one handed. I guess it's going to be added to the list of life's imponderables.