Hi all, I own a two year old Browning 525 with modern back bored barrels. I get reasonably consistent, if not high scores using Eley Olympic Blue plastic wad cartridges. I have been told that modern back bored guns perform better using plastic wad. The next couple of weekends I am shooting at grounds that are fibre wad only, and I need to get some more fibre wad cartridges. My dilemma is, is there any truth in the fact that plastic are better than fiber in a modern gun. Does anyone have any evidence, or experience of this. I have noticed that on the odd occasion I have used fibre the barrels appear to suffer more fouling. If there is no difference between plastic and fibre, other than cost, I might as well buy all fibre and not have to keep stocks of both. Thanks for any advice you can offer.