Until today they had all been fired through my Xtra lite o/u and it wasn't exactly calming. The first shots today were through the same, and to be fair the Benelli was a pussycat by comparison. We fired a hundred or so slugs and by the end we were just plinking and enjoying ourselves, I reckon it had all but disappeared by then.
The Winchester SXP was just as nice despite being lighter, but as that only had a bead it was no use for accuracy testing.